This is Unidirectional DP to HDMI cable. DON\u2019T support HDMI to DP. It is NOT Bi-directional. ?Audio & Video Sync Transmission?Supports both high-definition audio and video pass through from your computer to an HDMI input for video streaming or gaming. Suitable for extended or mirrored mode. Supports video resolutions up to 4096x2160/ 1920x1200 / 1080P@60HZ and flawless audio pass-thru for uncompressed digital 7.1, 5.1 or 2 channels.