CERTIFIED 2.1 HDMI CABLETechFlo's 2.1 HDMI Cables are certified by the HDMI implementers forum. Each cable has a unique barcode that can be scanned and verified with the official HDMI certification app. A genuine, certified cable complies with stringent specifications designed to ensure support for all HDMI 2.1 features. Cables have been tested and certified to ensure low electromagnetic interference to reduce the possibility of interference with wireless networks and other devices. UNBEATABLE 8KThe future of visual technology - feel like you are part of the action! With 4x as many pixels as 4K and 2x the horizontal and vertical resolution The 60Hz refresh rate results in a smooth and sharp picture. UNRIVALED GAMING2.1 HDMI functionality is designed for and compatible with next-gen consoles including Playstation 5 and Xbox Series X and is backward compatible with previous consoles. Variable refresh rate renders the perfect lag-free image. SPECIFICATIONSHDMI 2.1 supports 8K@60hz and 4K@120hz. Bandwidth 48Gbps. The cable also supports new cutting-edge features such as ALLM, QFT, QMS, eARC, Dynamic HDR, HDR 10, and Variable Refresh Rate (VRR). This cable supports all the existing HDMI functionality including 3D, Audio Return Channel (ARC), and Ethernet. WIDE COMPATIBILITYTechFlo's 8K 2.1 cable is compatible with Samsung TV, OLED TV, QLED TV, UHD TV, Sony TV, LG TV, Dobly Vision, Sound Bar, Projector, Laptop, Monitor, 8K TV, Series X, Xbox One, PS5, PS4. This cable is compatible with previous HDMI Standards ( 2.0b/2.0a/2.0/1.4/1.3/1.2/1.1).