Gefen GF-HDK18G-VIP-RX 4K HDMI KVM over IP Receiver
Usage Guide
Computers
Projector
TVs
Routers
Matrix / Extender
Connection Guide
Toslink Optical
HDMI Standard
Ethernet Plug
3.5mm Single
RS232
Our Hi-Fi specialists give free, honest advice — no commission, ever. Contact us by email or phone and we'll help you find the right cable for your system.
Item code: GF-HDK18G-VIP-RX
Inc. VAT (20%) · Ex. VAT: £1,759.50 Ex. VAT · Inc. VAT (20%):
Lowest price in the last 30 days:
Request to Price Match
If you've seen a better offer for this product, we will endeavour to match it. The competing offer must be on brand-new boxed items, and in stock from another UK Online Authorised Retailer (excluding marketplaces). Price match quotations are valid for 7 days.
SPEAKER CABLES:
A quantity of 2 means you will receive a pair of speaker cables e.g. for your front left and front right speakers. By entering a quantity of 1, you will get a cable for a single speaker e.g. centre speaker and this option also enables you to vary the length (and termination) of your cable for each speaker.
OTHER CABLES:
A quantity of 1 means you will receive a single cable in the case of aerial, satellite, subwoofer, digital coaxial & optical cables and a pair of cables in the case of 2 rca to 2 rca analogue audio cables.
NON-CABLE PRODUCTS:
A quantity of 1 means you will receive 1 of the specified products.
Order before 4pm (Mon–Fri) for same-day dispatch
Gefen GF-HDK18G-VIP-RX 4K HDMI KVM over IP Receiver
The Gefen GF-HDK18G-VIP-RX is the receiver end of the Gen3 HDK18G-VIP system, and the distinction that matters is that it is not a point-to-point extender pretending to be a matrix. Each receiver sits on an ordinary gigabit network and can be pointed at any sender on that network by matching a channel ID, so two units behave like a simple extender, a rack of them behaves like a virtual matrix, and you can grow from one to the other without replacing anything. The system scales to 39,900 senders and more than 65,000 senders and receivers combined, bounded in practice only by network bandwidth and switch port count.
Video is the headline. The receiver outputs up to 4K 60Hz at full 4:4:4 chroma with HDR10, HDR10+ and Dolby Vision, HDCP 2.3, 2.2 and 1.4, Deep Colour and lip-sync. An integrated scaler sits on the output, which matters more than it sounds on a large deployment, since it lets a mixed estate of displays each receive a resolution they can actually handle rather than forcing the whole system down to the lowest common denominator. Audio passes uncompressed LPCM up to 7.1 channels and up to 7.1 channels of high bit rate audio including Dolby Atmos, Dolby TrueHD, DTS:X and DTS-HD Master Audio. Content is distributed with AES-256 encryption.
The KVM side is properly implemented rather than token. Two USB 2.0 Type A ports on the rear take a keyboard, mouse or other peripherals, with USB Roaming so a single keyboard and mouse can control every PC on the network, and OSD hotkey switching so an operator can change source from the keyboard without touching the unit. Video, audio, RS-232, bi-directional IR and USB all route independently, so a receiver can be watching one source while its keyboard and mouse control another.
Audio is handled in both directions. A built-in de-embedder breaks two channels of analogue stereo out to the 3.5mm line output for headphones, powered speakers or a local amplifier. Separately, an optical input takes TOSLINK from the display itself and routes that audio back across the network to an amplifier at the source location, which is the feature that makes smart TV apps and broadcast tuners usable in a distributed system.
Practically, it is built to disappear. The enclosure is 231.5mm wide and only 25mm high, low profile enough to hide behind a display, and it is rack mountable using Gefen's optional 19-inch vertical stack rack. A two-port gigabit switch is built in, so a second device at the display can share the drop or units can be daisy chained. It conforms to 802.3at PoE and will run entirely from a PoE switch with no local power at all, drawing a maximum of 12W, though a 12V/3A locking supply is included for installations without PoE. Control is available through a built-in web interface, Telnet, UDP and an enhanced API for IP, RS-232, CEC and IR bridging, and firmware is field updatable either from the web server or in bulk through Gefen's GF-AVIP-MC Matrix Controller. MTBF is rated at 50,000 hours, and the unit carries a three year warranty.
What Gefen say about the GF-HDK18G-VIP-RX
The Gefen GF-HDK18G-VIP-RX 4K HDMI KVM over IP Receiver provides remote access to your high-definition and Ultra HD sources over a local area network (LAN). This powerful receiver unit allows you to extend 4K 60Hz 4:4:4 HDMI video, audio, RS-232, IR, and USB signals up to 330 feet (100 meters) from any sender unit on the network. Part of a flexible and scalable AV over IP system, this receiver, when used with a sender, can be used in a simple extender configuration or expanded to a sophisticated virtual matrix KVM switch system. Ideal for large-scale remote workstation access, digital signage, and high-performance AV applications, this HDMI extender solution offers a versatile and massively scalable system for your professional AV and IT needs.
Does not include GF-HDK18G-VIP-TX Sender. (Sold Separately)
Gefen Gen 3.0 KVM products offer enhanced performance, features, and functionality such as 4K Ultra HD with HDR support, built-in scaling, video-wall control, independent RS-232, IR, USB, and audio routing, USB Roaming, OSD Hotkey Keyboard switching.
The Gefen GF-HDK18G-VIP-TX & RX feature maximum input resolution of 4K 60 Hz 4:4:4, and maximum output resolution of 4K 60 Hz 4:4:4. HDCP 2.3/2.2 and 1.4 are also supported. 7.1 channels of HBR (High Bit Rate) lossless and LPCM digital audio can pass through the system as well. Video, Audio, RS-232, 2-way IR, and USB can be routed independently between any Sender and Receiver unit, allowing end-users to control any of the sources and the displays within their network. Analog audio break-out de-embeds audio from the video and sends it to a separate audio system, enhancing the impact of presentations. Digital Optical Audio from a Display is able to distribute to any Source location with an AV Receiver.
Applications include high performance AV and signage systems in sports bars, clubs, restaurants, board and huddle rooms, command and control centers, museums, airports, classrooms, auditoriums, hotels, and retail establishments.
Key Features
- Stunning 4K Video: Supports output resolutions up to 4K 60Hz (4:4:4) with HDR10, HDR10+, and Dolby Vision, ensuring pristine video quality for professional AV over IP applications.
- Flexible Signal Extension: Extends HDMI video, USB, RS-232, IR, and stereo analog audio over a standard Gigabit Local Area Network.
- Independent Signal Routing: Video, Audio, RS-232, IR, and USB can be routed independently, allowing any receiver to connect to any sender on the network to create a virtual matrix.
- Integrated KVM Functionality: Features two USB 2.0 ports for connecting keyboards, mice, and other USB devices, with support for USB Roaming and OSD Hotkey Switching.
- Built-in Video Wall Controller: Create dynamic video walls with configurations up to 16x16, complete with bezel compensation for a seamless display.
- Audio De-Embedding & Return: A built-in audio de-embedder breaks out analog stereo audio, while an optical input supports an Audio Return Path (ARP) from the display location.
- Power over Ethernet (PoE): Conforms to IEEE 802.3at standard, allowing the receiver to be powered via a PoE-enabled network switch without a separate power supply.
- How It Works
The Gefen HDK18G-VIP system operates with two main components: a Sender unit (sold separately) and one or more Receiver units connected over a standard Gigabit Local Area Network. The Sender unit connects to your HDMI or USB-C source device, and the Receiver unit connects to your display. Using a network switch, the system extends signals up to 330 feet (100 meters). By setting the channel ID on the Sender and Receiver units to match, you can route the source signal to the desired display. By adding multiple Senders and Receivers to the network, you can create a flexible and massively scalable "virtual matrix," allowing any connected workstation to control any source on the network using this advanced AV over IP solution.
System Requirements
- A managed gigabit switch with Jumbo Frame Support (8k or greater) and IGMP Snooping enabled is required for LAN connection.
- A dedicated LAN is highly recommended.
- Shielded CAT-5e (or better) cables not exceeding 330 feet (100 meters) are required between the Receiver and the network switch.
What's in the Box
1 x Receiver unit (GF-HDK18G-VIP-RX)
1 x 12V/3A Power Supply (EXT-PS12U3AIP-LP-6)
1 x Gefen IR Emitter (EXT-IREMIT)
1 x Gefen IR Receiver (EXT-RMT-EXTIRN)
4 x Self-Adhesive Rubber-Feet
1 x Quick-Start Guide
Specifications
General
- Brand: Gefen
- Model: GF-HDK18G-VIP-RX
- Type: Gen3 4K 60Hz HDMI KVM over IP Receiver
- UPC: 888814007602
- Requires: GF-HDK18G-VIP-TX Sender, sold separately
- Warranty: 3 years
Video
- Maximum Output Resolution: 4K Ultra HD 60Hz 4:4:4
- Also Supported: 1080p Full HD 60Hz, 1920 x 1200 60Hz (WUXGA)
- HDR: HDR10, HDR10+, Dolby Vision
- HDCP: 2.3, 2.2 and 1.4
- Other: Deep Colour, Lip-Sync pass-through
- Scaler: Integrated, capable of scaling output resolutions up to 4K 60Hz
- Video Wall: Built-in controller, any number of rows and columns up to 16x16, with bezel compensation
- DVI: Single-Link DVI sources and displays up to 1080p and 1920 x 1200 via DVI-to-HDMI cables (not included). Dual-Link DVI not supported
Audio
- Digital Pass-Through: Uncompressed LPCM up to 7.1 channels
- High Bit Rate: Up to 7.1 channels including Dolby Atmos, Dolby TrueHD, DTS:X and DTS-HD Master Audio
- Audio De-Embedder: Breaks out 2 channels of analogue stereo to the 3.5mm line output
- Audio Return Path: TOSLINK optical input takes audio from the display and routes it back across the network to an amplifier at the source location
Network and Distribution
- Transport: Gigabit Local Area Network, Unicast or Multicast
- Maximum Distance: 100m (330ft) between the receiver and the network switch
- Cable Requirement: Shielded CAT-5e or better
- Switch Requirement: Managed gigabit switch with Jumbo Frame Support (8k or greater) and IGMP Snooping enabled. A dedicated LAN is highly recommended
- Built-In Switch: Two-port Gigabit Ethernet switch for daisy chaining
- System Capacity: 39,900 senders, and over 65,000 senders and receivers combined, subject to network bandwidth and switch ports
- Encryption: AES-256 bit
- Independent Routing: Video, audio, RS-232, IR and USB route independently between any sender and receiver
KVM and Control
- USB Ports: 2 x USB 2.0 Type A for keyboard, mouse and other USB devices
- USB Roaming: One set of keyboard and mouse controls all PCs
- Switching: KVM OSD hotkey keyboard switching, plus front panel channel up/down
- Control Interfaces: Built-in web interface, Telnet, UDP, and an enhanced API for IP, RS-232, CEC and IR bridging
- CEC: Smart CEC management and power save modes
- Firmware: Field updatable via the built-in web server or the GF-AVIP-MC Matrix Controller (MFU mass firmware update)
Connectors and Controls
- Video Output: 1 x HDMI Type A 19-pin, female, locking
- Ethernet: 2 x RJ-45, shielded, one with PoE
- USB: 2 x USB 2.0 Type A
- Analogue Line Output: 1 x 3.5mm mini-stereo jack
- Digital Optical Audio Input: 1 x TOSLINK (Audio Return Path)
- RS-232: 1 x DB-9, male
- IR In/Ext: 1 x 3.5mm mini-stereo jack (IR Extender type EXT-RMT-EXTIRN)
- IR Out: 1 x 3.5mm mini-mono jack
- Power Input: 12V DC, 3-pin DIN locking
- Channel Up/Down: 2 x tact-type buttons
- IP Button: 1 x tact-type
- Service Button: 1 x tact-type, recessed
- Program Select Switch: 1 x slide-type, recessed, factory use only
- Display: 3-digit red LED, showing channel ID or IP address
- Indicators: Link LED (green), Power LED (bi-colour blue/red)
Power
- Power Requirement: 12V DC, or PoE (IEEE 802.3at standard)
- Power Consumption: 12W maximum
- Supplied PSU: 12V/3A (EXT-PS12U3AIP-LP-6), locking connector
Environmental and Reliability
- Operating Temperature: 0°C to +40°C (+32°F to +104°F)
- Storage Temperature: -20°C to +85°C (-4°F to +185°F)
- Operating Humidity: 20% to 90% RH, non-condensing
- Storage Humidity: 20% to 90% RH, non-condensing
- MTBF: 50,000 hours
Weight and Dimensions
- Dimensions (without connectors or feet): 231.5mm (W) x 25mm (H) x 158mm (D)
- Imperial: 9.11" (W) x 0.98" (H) x 6.22" (D)
- Unit Weight: 0.92kg (2.0 lbs)
- Shipping Weight: 1.7kg (3.8 lbs)
- Mounting: Rack mountable using Gefen's optional 19-inch vertical stack equipment rack
About Gefen
AV connectivity products for home and commercial use, from extenders and matrix switchers to KVM switches.
Gefen is a Californian AV connectivity company, and its current ownership sits with Nice North America in Carlsbad. The range covers AV over IP, HDMI, DVI and KVM, with matrix switchers, extenders, scalers and cables. You can use it to move video and control signals between sources and displays.
Read more about GefenShow less
Extenders and switchers move signals around a building
Gefen's extenders carry audio and video beyond the reach of a standard cable, and its matrix switchers route several sources to several screens. Splitters and scalers sit alongside them. Support for 4K, 8K and HDBaseT depends on the model, so check the specification.
KVM switches share one set of controls
A KVM switch lets you operate several computers from one keyboard, mouse and display. Gefen includes KVM over IP models, which extend that control across a network, so the computer and the person using it do not need to be in the same room.
Adaptors, cables and test tools support the system
The range includes AV adaptors, wall plates, HDMI and Ethernet cables, power supplies and control processors, as well as test tools such as the DVI Detective. Syner-G is its management software. Check the product page for the items currently available.
Specifications
General
- Brand: Gefen
- Model: GF-HDK18G-VIP-RX
- Type: Gen3 4K 60Hz HDMI KVM over IP Receiver
- UPC: 888814007602
- Requires: GF-HDK18G-VIP-TX Sender, sold separately
- Warranty: 3 years
Video
- Maximum Output Resolution: 4K Ultra HD 60Hz 4:4:4
- Also Supported: 1080p Full HD 60Hz, 1920 x 1200 60Hz (WUXGA)
- HDR: HDR10, HDR10+, Dolby Vision
- HDCP: 2.3, 2.2 and 1.4
- Other: Deep Colour, Lip-Sync pass-through
- Scaler: Integrated, capable of scaling output resolutions up to 4K 60Hz
- Video Wall: Built-in controller, any number of rows and columns up to 16x16, with bezel compensation
- DVI: Single-Link DVI sources and displays up to 1080p and 1920 x 1200 via DVI-to-HDMI cables (not included). Dual-Link DVI not supported
Audio
- Digital Pass-Through: Uncompressed LPCM up to 7.1 channels
- High Bit Rate: Up to 7.1 channels including Dolby Atmos, Dolby TrueHD, DTS:X and DTS-HD Master Audio
- Audio De-Embedder: Breaks out 2 channels of analogue stereo to the 3.5mm line output
- Audio Return Path: TOSLINK optical input takes audio from the display and routes it back across the network to an amplifier at the source location
Network and Distribution
- Transport: Gigabit Local Area Network, Unicast or Multicast
- Maximum Distance: 100m (330ft) between the receiver and the network switch
- Cable Requirement: Shielded CAT-5e or better
- Switch Requirement: Managed gigabit switch with Jumbo Frame Support (8k or greater) and IGMP Snooping enabled. A dedicated LAN is highly recommended
- Built-In Switch: Two-port Gigabit Ethernet switch for daisy chaining
- System Capacity: 39,900 senders, and over 65,000 senders and receivers combined, subject to network bandwidth and switch ports
- Encryption: AES-256 bit
- Independent Routing: Video, audio, RS-232, IR and USB route independently between any sender and receiver
KVM and Control
- USB Ports: 2 x USB 2.0 Type A for keyboard, mouse and other USB devices
- USB Roaming: One set of keyboard and mouse controls all PCs
- Switching: KVM OSD hotkey keyboard switching, plus front panel channel up/down
- Control Interfaces: Built-in web interface, Telnet, UDP, and an enhanced API for IP, RS-232, CEC and IR bridging
- CEC: Smart CEC management and power save modes
- Firmware: Field updatable via the built-in web server or the GF-AVIP-MC Matrix Controller (MFU mass firmware update)
Connectors and Controls
- Video Output: 1 x HDMI Type A 19-pin, female, locking
- Ethernet: 2 x RJ-45, shielded, one with PoE
- USB: 2 x USB 2.0 Type A
- Analogue Line Output: 1 x 3.5mm mini-stereo jack
- Digital Optical Audio Input: 1 x TOSLINK (Audio Return Path)
- RS-232: 1 x DB-9, male
- IR In/Ext: 1 x 3.5mm mini-stereo jack (IR Extender type EXT-RMT-EXTIRN)
- IR Out: 1 x 3.5mm mini-mono jack
- Power Input: 12V DC, 3-pin DIN locking
- Channel Up/Down: 2 x tact-type buttons
- IP Button: 1 x tact-type
- Service Button: 1 x tact-type, recessed
- Program Select Switch: 1 x slide-type, recessed, factory use only
- Display: 3-digit red LED, showing channel ID or IP address
- Indicators: Link LED (green), Power LED (bi-colour blue/red)
Power
- Power Requirement: 12V DC, or PoE (IEEE 802.3at standard)
- Power Consumption: 12W maximum
- Supplied PSU: 12V/3A (EXT-PS12U3AIP-LP-6), locking connector
Environmental and Reliability
- Operating Temperature: 0°C to +40°C (+32°F to +104°F)
- Storage Temperature: -20°C to +85°C (-4°F to +185°F)
- Operating Humidity: 20% to 90% RH, non-condensing
- Storage Humidity: 20% to 90% RH, non-condensing
- MTBF: 50,000 hours
Weight and Dimensions
- Dimensions (without connectors or feet): 231.5mm (W) x 25mm (H) x 158mm (D)
- Imperial: 9.11" (W) x 0.98" (H) x 6.22" (D)
- Unit Weight: 0.92kg (2.0 lbs)
- Shipping Weight: 1.7kg (3.8 lbs)
- Mounting: Rack mountable using Gefen's optional 19-inch vertical stack equipment rack
We use Royal Mail 1st Class services for our Standard Delivery.
Orders received before 4.30 pm Monday to Friday are usually dispatched the same day by FIRST CLASS post (unless premium postal or timed courier services are selected), subject to stock availability. This does not apply to custom-length cables and speaker cables as these require a longer timescale to terminate. This also excludes all cables selected for the burn-in service. Please note, we do not process orders on national holidays in the UK. Over 98% of our orders are delivered the next working day including Saturdays.
Standard delivery is usually within 2 working days, although 98% of all orders are delivered the next working day including Saturdays. In extreme cases, such as delivery to the Highlands and Islands, this may take 3 days.
All items are fully insured and come with an invoice from Future Shop. We use the Royal Mail for delivery of small packages and DPD Local or DHL for items that weigh over 2KG. Items over 2KG are fully insured and will usually be delivered within 48 hours of placing your order subject to stock availability. For international orders, we use FedEx or DHL services where customers have selected this option.








Please note, special orders for non-standard cable lengths may be subject to longer deliver time-scales. This may vary from manufacturer to manufacturer.
We offer 'Free delivery on orders over £99' subject to the following terms & conditions:
- Applies only to orders with £99 or more of items (including VAT at the UK rate), at Future Shop
- Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK (excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL).
- Applies only to deliveries to addresses within mainland UK and Northern Ireland addresses. Applies only to orders that are to be delivered to a single Mainland UK delivery address.
- You will not be eligible for free delivery on your order if any items are cancelled or returned for a refund, bringing the total order amount below £99. Where items are returned, the refund due will be the cost of the item less any postage costs.
- We reserve the right to change or discontinue 'Free delivery on orders over £99 promotion at any time.
- FREE DELIVERY FOR ORDERS OVER £99 OFFER DOES NOT APPLY TO TRADE CUSTOMERS.
UK Postal & Delivery Charges - FIRST CLASS
Free UK delivery on all orders over £99*
| Weight | Price (FIRST CLASS UK POSTAGE) |
| 0g - 1000g | £3.95 |
| 1000g - 1400g | £4.95 |
| 1400g - 1800g | £5.95 |
| 1800g - 2000g | £6.95 |
| 2000g - 3000g | £8.95 |
* Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK.
Free Delivery for orders over £99 excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL.
Special Delivery UK - Guaranteed Next Working Day
We have 99.9% of the UK covered With Royal Mail Next Day Special Delivery. We guarantee delivery to most UK addresses by 1pm the next working day. This includes Northern Ireland, Jersey and Guernsey. Some places take longer to deliver to but we still guarantee delivery within three working days by 5.30 PM.
Please note, Royal Mail Special Delivery for next working day may not be possible where non-standard cable lengths are ordered. If this is the case, the item will be shipped via The Royal Mail Special Delivery service as soon as the cable is custom made.
For orders weighing over 2KG, we reserve the right to ship items using Next Day Pre-Noon Courier Services where Royal Mail Special Delivery option has been selected.
Channel Islands & Northern Ireland
We accept orders from all Channel Islands including Alderney, Jersey, Guernsey and Sark. Unless you select a premium service, Items weighing under 2KG are delivered using our standard UK delivery option above. For items weighing over 2KG, a surcharge may be applied for all deliveries to the Channel Islands as well as Northern Ireland.
European Countries
Deliveries to EU member states are not subject to 20% VAT after December 31st 2020 and therefore the 20% VAT on items is automatically deducted when you log-in, register or proceed to place an order.
The customer will be liable for the VAT at the local VAT rate, duty on the import and the brokerage service fee if applicable. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.
We offer the following shipping services:
- Royal Mail First Class International Airmail Services - Items are usually delivered within 3 to 5 working days
- Royal Mail Standard International Mail Services - Items are usually delivered within 7-10 working days
- DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
- Federal Express International Priority - Items are usually delivered within 24 to 48 hours. FedEx orders must be received by 3.00pm for next day service to most destinations in Europe
- Federal Express International Economy - Item are usually delivered within 48 to 72 hours
We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.
Worldwide - Excluding UK & Europe
Deliveries outside of the UK are not subject to 20% VAT and so the 20% tax on items is automatically deducted when you log-in, register or proceed to place an order.
If applicable, the customer will be liable for the taxes at the local tax rate, duty on the import and the brokerage service fee. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.
We offer the following shipping services:
- Royal Mail First Class International Airmail Services - Items are usually delivered within 7 to 10 working days
- Royal Mail Standard International Mail Services - Items are usually delivered within 15 working days
- DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
- Federal Express International Priority - Items are usually delivered within 48 hours. FedEx orders must be received by 3.00pm in order to ship items the same day, subject to stock availability
- Where the actual weight of the package significantly exceeds the shipping cost charged on orders, we may write to you for an additional shipping charge. For larger orders, items may be shipped in multiple packets at our discretion
We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.
Frequently Asked Questions
Gefen GF-HDK18G-VIP-RX 4K HDMI KVM over IP Receiver
The Gefen GF-HDK18G-VIP-RX is the receiver end of the Gen3 HDK18G-VIP system, and the distinction that matters is that it is not a point-to-point extender pretending to be a matrix. Each receiver sits on an ordinary gigabit network and can be pointed at any sender on that network by matching a channel ID, so two units behave like a simple extender, a rack of them behaves like a virtual matrix, and you can grow from one to the other without replacing anything. The system scales to 39,900 senders and more than 65,000 senders and receivers combined, bounded in practice only by network bandwidth and switch port count.
Video is the headline. The receiver outputs up to 4K 60Hz at full 4:4:4 chroma with HDR10, HDR10+ and Dolby Vision, HDCP 2.3, 2.2 and 1.4, Deep Colour and lip-sync. An integrated scaler sits on the output, which matters more than it sounds on a large deployment, since it lets a mixed estate of displays each receive a resolution they can actually handle rather than forcing the whole system down to the lowest common denominator. Audio passes uncompressed LPCM up to 7.1 channels and up to 7.1 channels of high bit rate audio including Dolby Atmos, Dolby TrueHD, DTS:X and DTS-HD Master Audio. Content is distributed with AES-256 encryption.
The KVM side is properly implemented rather than token. Two USB 2.0 Type A ports on the rear take a keyboard, mouse or other peripherals, with USB Roaming so a single keyboard and mouse can control every PC on the network, and OSD hotkey switching so an operator can change source from the keyboard without touching the unit. Video, audio, RS-232, bi-directional IR and USB all route independently, so a receiver can be watching one source while its keyboard and mouse control another.
Audio is handled in both directions. A built-in de-embedder breaks two channels of analogue stereo out to the 3.5mm line output for headphones, powered speakers or a local amplifier. Separately, an optical input takes TOSLINK from the display itself and routes that audio back across the network to an amplifier at the source location, which is the feature that makes smart TV apps and broadcast tuners usable in a distributed system.
Practically, it is built to disappear. The enclosure is 231.5mm wide and only 25mm high, low profile enough to hide behind a display, and it is rack mountable using Gefen's optional 19-inch vertical stack rack. A two-port gigabit switch is built in, so a second device at the display can share the drop or units can be daisy chained. It conforms to 802.3at PoE and will run entirely from a PoE switch with no local power at all, drawing a maximum of 12W, though a 12V/3A locking supply is included for installations without PoE. Control is available through a built-in web interface, Telnet, UDP and an enhanced API for IP, RS-232, CEC and IR bridging, and firmware is field updatable either from the web server or in bulk through Gefen's GF-AVIP-MC Matrix Controller. MTBF is rated at 50,000 hours, and the unit carries a three year warranty.
What Gefen say about the GF-HDK18G-VIP-RX
The Gefen GF-HDK18G-VIP-RX 4K HDMI KVM over IP Receiver provides remote access to your high-definition and Ultra HD sources over a local area network (LAN). This powerful receiver unit allows you to extend 4K 60Hz 4:4:4 HDMI video, audio, RS-232, IR, and USB signals up to 330 feet (100 meters) from any sender unit on the network. Part of a flexible and scalable AV over IP system, this receiver, when used with a sender, can be used in a simple extender configuration or expanded to a sophisticated virtual matrix KVM switch system. Ideal for large-scale remote workstation access, digital signage, and high-performance AV applications, this HDMI extender solution offers a versatile and massively scalable system for your professional AV and IT needs.
Does not include GF-HDK18G-VIP-TX Sender. (Sold Separately)
Gefen Gen 3.0 KVM products offer enhanced performance, features, and functionality such as 4K Ultra HD with HDR support, built-in scaling, video-wall control, independent RS-232, IR, USB, and audio routing, USB Roaming, OSD Hotkey Keyboard switching.
The Gefen GF-HDK18G-VIP-TX & RX feature maximum input resolution of 4K 60 Hz 4:4:4, and maximum output resolution of 4K 60 Hz 4:4:4. HDCP 2.3/2.2 and 1.4 are also supported. 7.1 channels of HBR (High Bit Rate) lossless and LPCM digital audio can pass through the system as well. Video, Audio, RS-232, 2-way IR, and USB can be routed independently between any Sender and Receiver unit, allowing end-users to control any of the sources and the displays within their network. Analog audio break-out de-embeds audio from the video and sends it to a separate audio system, enhancing the impact of presentations. Digital Optical Audio from a Display is able to distribute to any Source location with an AV Receiver.
Applications include high performance AV and signage systems in sports bars, clubs, restaurants, board and huddle rooms, command and control centers, museums, airports, classrooms, auditoriums, hotels, and retail establishments.
Key Features
- Stunning 4K Video: Supports output resolutions up to 4K 60Hz (4:4:4) with HDR10, HDR10+, and Dolby Vision, ensuring pristine video quality for professional AV over IP applications.
- Flexible Signal Extension: Extends HDMI video, USB, RS-232, IR, and stereo analog audio over a standard Gigabit Local Area Network.
- Independent Signal Routing: Video, Audio, RS-232, IR, and USB can be routed independently, allowing any receiver to connect to any sender on the network to create a virtual matrix.
- Integrated KVM Functionality: Features two USB 2.0 ports for connecting keyboards, mice, and other USB devices, with support for USB Roaming and OSD Hotkey Switching.
- Built-in Video Wall Controller: Create dynamic video walls with configurations up to 16x16, complete with bezel compensation for a seamless display.
- Audio De-Embedding & Return: A built-in audio de-embedder breaks out analog stereo audio, while an optical input supports an Audio Return Path (ARP) from the display location.
- Power over Ethernet (PoE): Conforms to IEEE 802.3at standard, allowing the receiver to be powered via a PoE-enabled network switch without a separate power supply.
- How It Works
The Gefen HDK18G-VIP system operates with two main components: a Sender unit (sold separately) and one or more Receiver units connected over a standard Gigabit Local Area Network. The Sender unit connects to your HDMI or USB-C source device, and the Receiver unit connects to your display. Using a network switch, the system extends signals up to 330 feet (100 meters). By setting the channel ID on the Sender and Receiver units to match, you can route the source signal to the desired display. By adding multiple Senders and Receivers to the network, you can create a flexible and massively scalable "virtual matrix," allowing any connected workstation to control any source on the network using this advanced AV over IP solution.
System Requirements
- A managed gigabit switch with Jumbo Frame Support (8k or greater) and IGMP Snooping enabled is required for LAN connection.
- A dedicated LAN is highly recommended.
- Shielded CAT-5e (or better) cables not exceeding 330 feet (100 meters) are required between the Receiver and the network switch.
What's in the Box
1 x Receiver unit (GF-HDK18G-VIP-RX)
1 x 12V/3A Power Supply (EXT-PS12U3AIP-LP-6)
1 x Gefen IR Emitter (EXT-IREMIT)
1 x Gefen IR Receiver (EXT-RMT-EXTIRN)
4 x Self-Adhesive Rubber-Feet
1 x Quick-Start Guide
Specifications
General
- Brand: Gefen
- Model: GF-HDK18G-VIP-RX
- Type: Gen3 4K 60Hz HDMI KVM over IP Receiver
- UPC: 888814007602
- Requires: GF-HDK18G-VIP-TX Sender, sold separately
- Warranty: 3 years
Video
- Maximum Output Resolution: 4K Ultra HD 60Hz 4:4:4
- Also Supported: 1080p Full HD 60Hz, 1920 x 1200 60Hz (WUXGA)
- HDR: HDR10, HDR10+, Dolby Vision
- HDCP: 2.3, 2.2 and 1.4
- Other: Deep Colour, Lip-Sync pass-through
- Scaler: Integrated, capable of scaling output resolutions up to 4K 60Hz
- Video Wall: Built-in controller, any number of rows and columns up to 16x16, with bezel compensation
- DVI: Single-Link DVI sources and displays up to 1080p and 1920 x 1200 via DVI-to-HDMI cables (not included). Dual-Link DVI not supported
Audio
- Digital Pass-Through: Uncompressed LPCM up to 7.1 channels
- High Bit Rate: Up to 7.1 channels including Dolby Atmos, Dolby TrueHD, DTS:X and DTS-HD Master Audio
- Audio De-Embedder: Breaks out 2 channels of analogue stereo to the 3.5mm line output
- Audio Return Path: TOSLINK optical input takes audio from the display and routes it back across the network to an amplifier at the source location
Network and Distribution
- Transport: Gigabit Local Area Network, Unicast or Multicast
- Maximum Distance: 100m (330ft) between the receiver and the network switch
- Cable Requirement: Shielded CAT-5e or better
- Switch Requirement: Managed gigabit switch with Jumbo Frame Support (8k or greater) and IGMP Snooping enabled. A dedicated LAN is highly recommended
- Built-In Switch: Two-port Gigabit Ethernet switch for daisy chaining
- System Capacity: 39,900 senders, and over 65,000 senders and receivers combined, subject to network bandwidth and switch ports
- Encryption: AES-256 bit
- Independent Routing: Video, audio, RS-232, IR and USB route independently between any sender and receiver
KVM and Control
- USB Ports: 2 x USB 2.0 Type A for keyboard, mouse and other USB devices
- USB Roaming: One set of keyboard and mouse controls all PCs
- Switching: KVM OSD hotkey keyboard switching, plus front panel channel up/down
- Control Interfaces: Built-in web interface, Telnet, UDP, and an enhanced API for IP, RS-232, CEC and IR bridging
- CEC: Smart CEC management and power save modes
- Firmware: Field updatable via the built-in web server or the GF-AVIP-MC Matrix Controller (MFU mass firmware update)
Connectors and Controls
- Video Output: 1 x HDMI Type A 19-pin, female, locking
- Ethernet: 2 x RJ-45, shielded, one with PoE
- USB: 2 x USB 2.0 Type A
- Analogue Line Output: 1 x 3.5mm mini-stereo jack
- Digital Optical Audio Input: 1 x TOSLINK (Audio Return Path)
- RS-232: 1 x DB-9, male
- IR In/Ext: 1 x 3.5mm mini-stereo jack (IR Extender type EXT-RMT-EXTIRN)
- IR Out: 1 x 3.5mm mini-mono jack
- Power Input: 12V DC, 3-pin DIN locking
- Channel Up/Down: 2 x tact-type buttons
- IP Button: 1 x tact-type
- Service Button: 1 x tact-type, recessed
- Program Select Switch: 1 x slide-type, recessed, factory use only
- Display: 3-digit red LED, showing channel ID or IP address
- Indicators: Link LED (green), Power LED (bi-colour blue/red)
Power
- Power Requirement: 12V DC, or PoE (IEEE 802.3at standard)
- Power Consumption: 12W maximum
- Supplied PSU: 12V/3A (EXT-PS12U3AIP-LP-6), locking connector
Environmental and Reliability
- Operating Temperature: 0°C to +40°C (+32°F to +104°F)
- Storage Temperature: -20°C to +85°C (-4°F to +185°F)
- Operating Humidity: 20% to 90% RH, non-condensing
- Storage Humidity: 20% to 90% RH, non-condensing
- MTBF: 50,000 hours
Weight and Dimensions
- Dimensions (without connectors or feet): 231.5mm (W) x 25mm (H) x 158mm (D)
- Imperial: 9.11" (W) x 0.98" (H) x 6.22" (D)
- Unit Weight: 0.92kg (2.0 lbs)
- Shipping Weight: 1.7kg (3.8 lbs)
- Mounting: Rack mountable using Gefen's optional 19-inch vertical stack equipment rack
About Gefen
AV connectivity products for home and commercial use, from extenders and matrix switchers to KVM switches.
Gefen is a Californian AV connectivity company, and its current ownership sits with Nice North America in Carlsbad. The range covers AV over IP, HDMI, DVI and KVM, with matrix switchers, extenders, scalers and cables. You can use it to move video and control signals between sources and displays.
Read more about GefenShow less
Extenders and switchers move signals around a building
Gefen's extenders carry audio and video beyond the reach of a standard cable, and its matrix switchers route several sources to several screens. Splitters and scalers sit alongside them. Support for 4K, 8K and HDBaseT depends on the model, so check the specification.
KVM switches share one set of controls
A KVM switch lets you operate several computers from one keyboard, mouse and display. Gefen includes KVM over IP models, which extend that control across a network, so the computer and the person using it do not need to be in the same room.
Adaptors, cables and test tools support the system
The range includes AV adaptors, wall plates, HDMI and Ethernet cables, power supplies and control processors, as well as test tools such as the DVI Detective. Syner-G is its management software. Check the product page for the items currently available.
Specifications
General
- Brand: Gefen
- Model: GF-HDK18G-VIP-RX
- Type: Gen3 4K 60Hz HDMI KVM over IP Receiver
- UPC: 888814007602
- Requires: GF-HDK18G-VIP-TX Sender, sold separately
- Warranty: 3 years
Video
- Maximum Output Resolution: 4K Ultra HD 60Hz 4:4:4
- Also Supported: 1080p Full HD 60Hz, 1920 x 1200 60Hz (WUXGA)
- HDR: HDR10, HDR10+, Dolby Vision
- HDCP: 2.3, 2.2 and 1.4
- Other: Deep Colour, Lip-Sync pass-through
- Scaler: Integrated, capable of scaling output resolutions up to 4K 60Hz
- Video Wall: Built-in controller, any number of rows and columns up to 16x16, with bezel compensation
- DVI: Single-Link DVI sources and displays up to 1080p and 1920 x 1200 via DVI-to-HDMI cables (not included). Dual-Link DVI not supported
Audio
- Digital Pass-Through: Uncompressed LPCM up to 7.1 channels
- High Bit Rate: Up to 7.1 channels including Dolby Atmos, Dolby TrueHD, DTS:X and DTS-HD Master Audio
- Audio De-Embedder: Breaks out 2 channels of analogue stereo to the 3.5mm line output
- Audio Return Path: TOSLINK optical input takes audio from the display and routes it back across the network to an amplifier at the source location
Network and Distribution
- Transport: Gigabit Local Area Network, Unicast or Multicast
- Maximum Distance: 100m (330ft) between the receiver and the network switch
- Cable Requirement: Shielded CAT-5e or better
- Switch Requirement: Managed gigabit switch with Jumbo Frame Support (8k or greater) and IGMP Snooping enabled. A dedicated LAN is highly recommended
- Built-In Switch: Two-port Gigabit Ethernet switch for daisy chaining
- System Capacity: 39,900 senders, and over 65,000 senders and receivers combined, subject to network bandwidth and switch ports
- Encryption: AES-256 bit
- Independent Routing: Video, audio, RS-232, IR and USB route independently between any sender and receiver
KVM and Control
- USB Ports: 2 x USB 2.0 Type A for keyboard, mouse and other USB devices
- USB Roaming: One set of keyboard and mouse controls all PCs
- Switching: KVM OSD hotkey keyboard switching, plus front panel channel up/down
- Control Interfaces: Built-in web interface, Telnet, UDP, and an enhanced API for IP, RS-232, CEC and IR bridging
- CEC: Smart CEC management and power save modes
- Firmware: Field updatable via the built-in web server or the GF-AVIP-MC Matrix Controller (MFU mass firmware update)
Connectors and Controls
- Video Output: 1 x HDMI Type A 19-pin, female, locking
- Ethernet: 2 x RJ-45, shielded, one with PoE
- USB: 2 x USB 2.0 Type A
- Analogue Line Output: 1 x 3.5mm mini-stereo jack
- Digital Optical Audio Input: 1 x TOSLINK (Audio Return Path)
- RS-232: 1 x DB-9, male
- IR In/Ext: 1 x 3.5mm mini-stereo jack (IR Extender type EXT-RMT-EXTIRN)
- IR Out: 1 x 3.5mm mini-mono jack
- Power Input: 12V DC, 3-pin DIN locking
- Channel Up/Down: 2 x tact-type buttons
- IP Button: 1 x tact-type
- Service Button: 1 x tact-type, recessed
- Program Select Switch: 1 x slide-type, recessed, factory use only
- Display: 3-digit red LED, showing channel ID or IP address
- Indicators: Link LED (green), Power LED (bi-colour blue/red)
Power
- Power Requirement: 12V DC, or PoE (IEEE 802.3at standard)
- Power Consumption: 12W maximum
- Supplied PSU: 12V/3A (EXT-PS12U3AIP-LP-6), locking connector
Environmental and Reliability
- Operating Temperature: 0°C to +40°C (+32°F to +104°F)
- Storage Temperature: -20°C to +85°C (-4°F to +185°F)
- Operating Humidity: 20% to 90% RH, non-condensing
- Storage Humidity: 20% to 90% RH, non-condensing
- MTBF: 50,000 hours
Weight and Dimensions
- Dimensions (without connectors or feet): 231.5mm (W) x 25mm (H) x 158mm (D)
- Imperial: 9.11" (W) x 0.98" (H) x 6.22" (D)
- Unit Weight: 0.92kg (2.0 lbs)
- Shipping Weight: 1.7kg (3.8 lbs)
- Mounting: Rack mountable using Gefen's optional 19-inch vertical stack equipment rack
We use Royal Mail 1st Class services for our Standard Delivery.
Orders received before 4.30 pm Monday to Friday are usually dispatched the same day by FIRST CLASS post (unless premium postal or timed courier services are selected), subject to stock availability. This does not apply to custom-length cables and speaker cables as these require a longer timescale to terminate. This also excludes all cables selected for the burn-in service. Please note, we do not process orders on national holidays in the UK. Over 98% of our orders are delivered the next working day including Saturdays.
Standard delivery is usually within 2 working days, although 98% of all orders are delivered the next working day including Saturdays. In extreme cases, such as delivery to the Highlands and Islands, this may take 3 days.
All items are fully insured and come with an invoice from Future Shop. We use the Royal Mail for delivery of small packages and DPD Local or DHL for items that weigh over 2KG. Items over 2KG are fully insured and will usually be delivered within 48 hours of placing your order subject to stock availability. For international orders, we use FedEx or DHL services where customers have selected this option.








Please note, special orders for non-standard cable lengths may be subject to longer deliver time-scales. This may vary from manufacturer to manufacturer.
We offer 'Free delivery on orders over £99' subject to the following terms & conditions:
- Applies only to orders with £99 or more of items (including VAT at the UK rate), at Future Shop
- Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK (excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL).
- Applies only to deliveries to addresses within mainland UK and Northern Ireland addresses. Applies only to orders that are to be delivered to a single Mainland UK delivery address.
- You will not be eligible for free delivery on your order if any items are cancelled or returned for a refund, bringing the total order amount below £99. Where items are returned, the refund due will be the cost of the item less any postage costs.
- We reserve the right to change or discontinue 'Free delivery on orders over £99 promotion at any time.
- FREE DELIVERY FOR ORDERS OVER £99 OFFER DOES NOT APPLY TO TRADE CUSTOMERS.
UK Postal & Delivery Charges - FIRST CLASS
Free UK delivery on all orders over £99*
| Weight | Price (FIRST CLASS UK POSTAGE) |
| 0g - 1000g | £3.95 |
| 1000g - 1400g | £4.95 |
| 1400g - 1800g | £5.95 |
| 1800g - 2000g | £6.95 |
| 2000g - 3000g | £8.95 |
* Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK.
Free Delivery for orders over £99 excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL.
Special Delivery UK - Guaranteed Next Working Day
We have 99.9% of the UK covered With Royal Mail Next Day Special Delivery. We guarantee delivery to most UK addresses by 1pm the next working day. This includes Northern Ireland, Jersey and Guernsey. Some places take longer to deliver to but we still guarantee delivery within three working days by 5.30 PM.
Please note, Royal Mail Special Delivery for next working day may not be possible where non-standard cable lengths are ordered. If this is the case, the item will be shipped via The Royal Mail Special Delivery service as soon as the cable is custom made.
For orders weighing over 2KG, we reserve the right to ship items using Next Day Pre-Noon Courier Services where Royal Mail Special Delivery option has been selected.
Channel Islands & Northern Ireland
We accept orders from all Channel Islands including Alderney, Jersey, Guernsey and Sark. Unless you select a premium service, Items weighing under 2KG are delivered using our standard UK delivery option above. For items weighing over 2KG, a surcharge may be applied for all deliveries to the Channel Islands as well as Northern Ireland.
European Countries
Deliveries to EU member states are not subject to 20% VAT after December 31st 2020 and therefore the 20% VAT on items is automatically deducted when you log-in, register or proceed to place an order.
The customer will be liable for the VAT at the local VAT rate, duty on the import and the brokerage service fee if applicable. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.
We offer the following shipping services:
- Royal Mail First Class International Airmail Services - Items are usually delivered within 3 to 5 working days
- Royal Mail Standard International Mail Services - Items are usually delivered within 7-10 working days
- DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
- Federal Express International Priority - Items are usually delivered within 24 to 48 hours. FedEx orders must be received by 3.00pm for next day service to most destinations in Europe
- Federal Express International Economy - Item are usually delivered within 48 to 72 hours
We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.
Worldwide - Excluding UK & Europe
Deliveries outside of the UK are not subject to 20% VAT and so the 20% tax on items is automatically deducted when you log-in, register or proceed to place an order.
If applicable, the customer will be liable for the taxes at the local tax rate, duty on the import and the brokerage service fee. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.
We offer the following shipping services:
- Royal Mail First Class International Airmail Services - Items are usually delivered within 7 to 10 working days
- Royal Mail Standard International Mail Services - Items are usually delivered within 15 working days
- DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
- Federal Express International Priority - Items are usually delivered within 48 hours. FedEx orders must be received by 3.00pm in order to ship items the same day, subject to stock availability
- Where the actual weight of the package significantly exceeds the shipping cost charged on orders, we may write to you for an additional shipping charge. For larger orders, items may be shipped in multiple packets at our discretion
We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.
Write Your Own Review
Gefen GF-HDK18G-VIP-RX 4K HDMI KVM over IP Receiver
We are interested in your opinion. Let us and other customers know how you feel by filling in the comment field below.
No reviews yet. Be the first to review this product.
Frequently Asked Questions
Did you find what you were looking for?
Write Your Own Review
Gefen GF-HDK18G-VIP-RX 4K HDMI KVM over IP Receiver
We are interested in your opinion of this product. let us and other customers know how you feel by filling in the comment field below. Your review will appear in this section within 3 working days.
Please do:
- - Write 50-300 words for the product
- - Comment on the products value and effectiveness
- - Tell us if you like the product, but most importantly explain why you like or dislike it
- - Mention related products and how this one rates by comparison
Still Interested?