【Customer Service】If there are any issues with 8K fiber optic HDMI 2.1 cable, please contact us. 【8K@60Hz & 4K@120Hz】BIFALE 8K fiber optic HDMI cable support 8K@60Hz, 4K@120Hz/60Hz & up to 10K resolution for long distance transmission. No signal loss and delay. 【High Performance & in-Wall Rated】Our fiber HDMI 2.1 Cable support Dynamic HDR 10, eARC, ALLM, QFT, QMS, VRR, BT.2020, 4:4:4 RGB, 12-bit color, HDCP 2.2/2.3. 32 audio channels and a 1536 KHz sampling rate. Immersive audio support for surround sound 7.1 and 5.1 channels including DTS X/DTS-HD Master Audio with this feature filled HDMI monitor cable. The BIFALE 8k fiber optic HDMI cable jacket has passed in-wall rated certified. 【Active 8K Optical HDMI Cable】This type cable is one-way transmission "SOURCE" plug for connecting HDMI source(Blu-ray, STBox etc.) DISPLAY plug for connecting your HDMI display device(TV, cinema projector, etc.) Backwards compatible with HDMI 2.0, 1.4 & 1.3. Plug and play, no external power needed. Multi-transfer will result in HDMI signal loss. 【Wide Compatibility】BIFALE 8k fiber HDMI cable is compatible with Nvidia RTX 3080/3090 Xbox Series X PS5 Denon AV Receiver LG Samsung Sony TV,etc. Outer Diameter:0.189 inch. Slim and Flexible. All BIFALE Fiber HDMI 2.1 Cable are Passed Professional HDMI 2.1 Cable Analyzers. fiber optic hdmi cable