The iFi Audio HDMI iSilencer is an advanced HDMI noise filter that uses Active Noise Cancellation and Jitter Elimination technologies to reduce system noise, improve audio clarity, and enhance video quality, while also providing surge protection. Compatible with HDMI 2.1 and previous versions, it supports Ultra HD HDR 8K/60Hz and 4K/120Hz, ensuring high-resolution content playback and durable, high-speed connectivity.