Compatibility-High Definition support 8K@60Hz,4K@120Hz ,UHD BD HDR,with 8K 7680*4320 resolution,backward compatible with 4k 2.0~2.0b/2K 1.4~1.4b/1.3/1.2/1.1,single way transmission,SOURCE port for connecting HDMI source(Blu-ray, STBox etc.) DISPLAY port for connecting HDMI display device(8K TV, cinema projector, etc.)support BT.2020 High Speed Transmission: -48 Gbps bandwidth and Extended Supported CEC,with strong anti-interference ability,high speed optical fiber transmission without latency delay and signal loss for long distance transmission. High Quality Sound-effect: -Ethernet and Audio Return Channel (eARC) enhanced the HIFI sound effect,with 32 audio channel,support multiple audio format transmission.Fully compatible with 5.1/7.1 sound channel. High Definition: -The updated HDMI 2.1 version Cable with 8K@60Hz and 4K@120Hz resolution support high-dynamic HDR display and stereoscopic imaging technique,improved the definition and quality for images and videos. Support aud