UHD HDMI 2.1 Cable: Meets the newest standard HDMI 2.1 Version and charactrize by 3 times transmission speed more than Ultra HD 4K, less lag, stuck and flick. This HDMI cord is also backward compatible with HDMI 2.0b/2.0a/1.4/1.3/1.2/1.1 version Supports 8K Video and More: This hdmi to hdmi cable Fiber Optic supports 3D, Ethernet, 8K@60Hz, 4K@120Hz, 2K, 1080P, 48Gbps bandwidth, 48 bit/px HDR color depth, TrueHD 7.1 and new features such as eARC, VRR, QFT, QMS, ALLM, DSC, and more [4K@120Hz for Gaming]--It can achieve a super smooth picture of 4K@120HZ for gaming. Its latest game mode supports variable refresh rates, maximizes the value of the graphics card and CPU, and is more accurate in the processing of rendered images. Variable Refresh Rate and Quick Media Switching reduce lag, motion blur, and frame tearing so that you can achieve smoother delay-free gaming and real-time interactive virtual reality Universal Compatiblility: The 8k hdmi cable is compatible for all of HDMI devices, e.g., HDTV, Laptop, Monitor, PS5, Xbox, Projector, Entertainment/Sound/Video Conference System, Blu-ray players, and more. Fits for home and office, indoor and outdoor [Attention!!!]--The cable is unidirectional as it’s optical HDMI cable. The plugs at each end are marked with “SOURCE” or “DISPLAY”, please note these words and distinguish between them. The SOURCE end is for the signal devices (laptop, PC, Blu-ray player etc) and the DISPLAY end is for the display devices (monitor, TV, projector etc). So make sure you plug in each end correctly (if not then you will get no image from the device) Strict Quality Control: Our HDMI 2.1 cables have been put through rigorous performance tests in the laboratory before delivery. One 50 foot 8K HDMI cable in the box