displayport to hdmi cable, connects computer to tv for audio and video streaming or to a monitor or projector; plug and play; please note: this is displayport to hdmi cable, don't support hdmi to dp. it is not bi-directional. audio video sync: display port to hdmi adapter cable transmits high-definition video and audio from your computer to an hdtv for video streaming or gaming; reliable connectivity: gold-plated connectors, tinned copper wire, aluminum foil and braid, durable pvc case, all of them ensure a strength connectivity between devices; mirror or extend your computer: under mirror mode, you could view your laptop or desktop's screen or video on display or tv, easily play games or movies to tv; under extend mode, you could connect a second monitor to computer, to give them a larger desktop on which to work;