8K Fiber HDMI Cable support 8K@60Hz,4K@120Hz, 48Gbps, HDCP2.2, 4:4:4, 16bit. The transmission rate and resolution of HDMI 2.1 is higher than HDMI 2.0 Backward compatible with 2.0 Our 2.1 fiber optic HDMI cable run HDR10 and Dolby Vision support VRR/QFT/QMS/ALLM/eARC and VESA DSC 1.2a. Multi-transfer will result in HDMI signal loss. Our 2.1 HDMI fiber optic 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.). Thin and flexible, OD 0.189 inch (4.8mm). Due to connector is very delicate; do not pull or impact the connector. Compatible with Apple TV, Nintendo Switch, Fire TV, Roku Stick Player, Xbox, Playstation, PS3, PS4 Pro,etc. Truely support HD Dolby 7.1 and DTS-HD Master Audio and Dolby Atmos.