This cable combines many of the newest technologies and represents the ultimate in Choetech technology. The latest version of the HDMI specification is HDMI 2.1. All HDMI 2.0 adapters can use it, and it is backward compatible with previous versions (HDMI 2.0a/2.0/1.4/1.3/1.2/1.1). Support for Choetech 8K HDMI 2.1 cables