HDMI 2.1 Cable backward compatible with 2.0,1.4,1.2 version ect. it means this cable can be used in your devices with HDMI 2.0 or 1.4 version, you don't need to buy different version cable repeatedly.

(1) Real 8K: Support 8K/60Hz,4K/120Hz resolution, and backward compatible with other resolution.

(2) Immersive Experience: Support Dynamic HDR, HDCP 2.2 & 2.3, DTS:X, Dolby Atmos, Dolby Vision,eARC, HDR 10+ ect, enjoy the brightness and real world.

(3)Widely Compatible: for Nintendo Switch,PS5,PS4, PS3, Xbox One/360, for 8K TV, Apple TV 4K,monitors,projectors, computers and other devices with HDMI