8K HDMI cable 2.1 is the latest HDMI specification, supports 48gbps transmission, supports higher video resolution and refresh rate, including 8K@60Hz and 4K@120Hz and can provide the latest features HDR, HDCP 2.2 and 2.3, DTS: X , Dolby Atmos, Dolby Vision. Strong applicability, backward compatible with earlier versions of HDMI, supporting more high-definition TVs, computers, projectors, set-top boxes and other devices. Advanced manufacturing materials and excellent craftsmanship make the product's anti-interference ability stronger and signal transmission more stable.