HDMI UHD, High-Definition Multimedia Interface. Backwards compatible with HDMI 1.0, 1.1, 1.2, 1.2a, 1.3,1.4, 1.4a, 1.4b. Supports High-bandwidth Digital Content Protection (HDCP), Audio Return Channel (ARC), High Dynamic Range (HDR). Consumer Electronics Control - CEC extensions for single control point. Transition Minimized Differential Signaling (TMDS) for connecting to AV equipment. Enhanced video and audio experience.