connecting a Mini DisplayPort (Mini DP or MDP)/Thunderbolt 2 port compatible computer to a monitor or projector with DisplayPort; A separate DisplayPort cable (sold separately) is required. Transmits both audio and video from computer or tablet to HD monitor display; Supports 4K (3840x2160) Ultra HD resolution and flawless audio pass-thru for uncompressed digital 7.1, 5.1 or 2 channels. Gold-plated connectors resist corrosion, provide rigidity, and improve the signal performance.