Digital

USB, ethernet, optical, coaxial and AES/EBU cables for streaming and digital audio. The connections between computers, servers, streamers and DACs.

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Digital cable, and why it is not only data

A digital cable either delivers the data or it does not, but that is only half the story. Timing errors and electrical noise travel along the cable alongside the signal and arrive at the DAC, where both affect what comes out of the analogue stage. This is why digital cables can sound different from one another despite carrying identical data.

Choose by connection first. USB is the most common link from a computer or streamer to a DAC. Ethernet carries network audio and is the fastest growing area in digital hi-fi. Optical isolates two components electrically, which helps where noise is a problem, but has bandwidth limits at high sample rates. Coaxial S/PDIF generally handles higher rates and keeps a direct electrical connection. AES/EBU on XLR is the professional standard and appears on higher end transports and DACs.

Impedance is not optional on coaxial and AES/EBU, at 75 ohm and 110 ohm respectively, so a standard interconnect is not a substitute even though the plugs fit. Tell us the source, the DAC and the sample rates involved and we will tell you which connection to use.

4.95/5 from 20,578+ reviews Award Winning Dealer Since 2013 UK Specialist since 2005

12 of 403 products

  • QED Performance Toslink Digital Optical Audio Cable Graphite
    ★ Award

    QED

    QED Performance Toslink Digital Optical Audio Cable Graphite

    SKU: QED Performance Optical

    (51 reviews)
    From
    £49.17
    Ex. VAT

    QED's multi-award winning Toslink optical digital audio cable relies on PMMA acrylic glass fibre to carry high frequency signals with ease, designed to minimise light absorption and allow more rays to travel along the cable by reducing the angle of incidence for internal reflection. This cable delivers a nicely balanced sound with full bass and punchy, precise high ends.
     

      
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  • AudioQuest

    AudioQuest CAT7 Pearl RJ/E Ethernet Cable Custom

    SKU: AQ CAT7 Pearl Custom

    (56 reviews)
    £10.00
    Ex. VAT
    Built with Solid Long-Grain Copper and 100% shielded gold-plated connectors, AudioQuest's CAT7 Pearl allows 10G ethernet over up to 100 metres. Unlike the CAT6, each signal pair in the CAT7 is insulated from the others, allowing it to achieve a higher grading. This cable delivers excellent performance for streaming audio or video, and as always provides a more reliable connection than wi-fi.
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  • QED

    QED Reference Optical Quartz Cable

    SKU: QED Reference Optical

    (61 reviews)
    From
    £107.50
    Ex. VAT

    QED's Reference Optical Quartz Cable is built with 210 separate Glasscore™ (boro-silicate glass) fibres that produce straighter signal paths, delivering ultra-low jitter signal transfer. The result is a clear, open sound.

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  • Supra

    SUPRA CAT8 Flame Retardant Ethernet Cable - Custom Length

    SKU: Supra CAT8 Custom

    (54 reviews)
    £11.67
    Ex. VAT

    The SUPRA CAT8 is a sturdy cable providing extreme performance with a bandwidth of 2000MHz. Flame-retardant and double-shielded, it does an excellent job in avoiding lag in audio or video. It is also still backwards-compatible with standard Cat 6A. The custom lengths come with Future Shop custom terminations, made of nickel-plated zinc by Telegärtner.

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  • AudioQuest

    AudioQuest Vodka RJ/E Ethernet Cable

    SKU: AQ Vodka Ethernet

    (23 reviews)
    From
    £432.50
    Ex. VAT
    Over the past several years there’s been a revolution in the way people store, distribute, and access digital media (in real time), including photos, movies, and, of course, music.
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  • AudioQuest

    AudioQuest Cinnamon RJ/E Ethernet Cable

    SKU: AQ Cinnamon Ethernet

    (29 reviews)
    From
    £91.62
    Ex. VAT
    Over the past several years there’s been a revolution in the way people store, distribute, and access digital media (in real time), including photos, movies, and, of course, music.
    View Available Worldwide Shipping Available
  • QED Performance Digital Coaxial Audio Cable - Custom Length
    ★ Award

    QED

    QED Performance Digital Coaxial Audio Cable - Custom Length

    SKU: QED Performance Digi Coax Custom

    (28 reviews)
    £29.12
    Ex. VAT
    QED's multi award winning coaxial optical digital audio cable.

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  • QED

    QED Performance Graphite USB Type A to Type B Cable

    SKU: QED Performance USB A-B

    (23 reviews)
    From
    £24.17
    Ex. VAT
    Performance USB is designed specifically for the transmission of high definition digital audio between USB audio components.
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  • Supra USB 2.0, Type A to Type B Cable
    ★ Award

    Supra

    Supra USB 2.0 Type A to Type B Cable

    SKU: Supra USB A-B

    (24 reviews)
    From
    £31.67
    Ex. VAT

    Supra's award-winning USB 2.0 Typa A to Type B cable features two twisted pairs- one for data, one for power- and 24K gold-plated terminations to deliver strong signal transfer and clear sound.

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  • Furutech Formula 2, Type A to Type B USB Cable
    ★ Award

    Furutech

    Furutech Formula 2 Type A to Type B USB Cable

    SKU: Formula 2 USB A-B

    (12 reviews)
    From
    £37.50
    Ex. VAT

    The Formula 2 is a beautifully engineered and built USB 2.0 cable for enthusiasts with growing music collections on their computer hard drives looking for high-performance sound.

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  • Atlas Cables

    Atlas Element SC USB Type A to Type B Cable

    SKU: Atlas Element SC USB

    (14 reviews)
    From
    £45.42
    Ex. VAT
    The new generation of Atlas' acclaimed Element, with a solid core copper conductor, designed to provide maximum performance from computer audio sources. Typically used to connect a Mac, PC or streamer to the DAC or digital input in your hifi system.
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  • AudioQuest

    AudioQuest CAT6 Pearl RJ/E Ethernet Cable Custom

    SKU: AQ CAT6 Pearl Custom

    (32 reviews)
    £4.17
    Ex. VAT
    Built with Solid Long-Grain Copper and 100% shielded gold-plated connectors, AudioQuest's CAT6 Pearl allows 10G ethernet over up to 55 metres. This cable delivers excellent performance for streaming audio or video, and as always provides a more reliable connection than wi-fi.
    View Available Worldwide Shipping Available

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For noise isolation, yes. While Ethernet transmits data efficiently, it can carry noise. Fibre breaks the electrical path, reducing interference.

Coaxial S/PDIF uses RCA or BNC connectors with 75-ohm impedance, while AES/EBU is balanced and uses XLR connectors with 110-ohm impedance. AES/EBU typically offers better noise rejection for professional and high-end systems.

Optical TOSLINK cables are ideal for preventing ground loops and electrical interference since they use light transmission. Coaxial cables, however, often deliver a slightly more robust and detailed sound.

Yes, but not in the same way as analogue cables. High-quality digital cables minimise jitter and ensure stable signal transfer, preserving timing accuracy and reducing noise.

Yes. Both coaxial and AES/EBU cables can handle 24-bit/192kHz audio, while optical cables may be limited to 24-bit/96kHz depending on the device.

Using a true 75-ohm coaxial digital cable maintains impedance consistency and reduces signal reflections that can introduce jitter and distortion.

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