Note: for some compatible device it might take a few seconds for the video to display. Portable adapter connects a DisplayPort (DP DP++ DisplayPort++) equipped laptop or desktop to an HDTV monitor or projector with HDMI input; An HDMI cable (sold separately) is requiredNote: this is DP to HDMI NOT USB to HDMI. Transmits high-definition audio and video from your computer to an HDTV for video streaming or gaming; Supports video resolutions up to 4K and uncompressed digital 7.1 5.1 or 2 audio channelsNote: It is a one-way convertor from DP to HDMI NOT HDMI to DP. Gold-plated connectors resist corrosion provide durability and improve the signal transmissionDisplayPort connector with latches provides a secure connection with a release button that must be depressed before unpluggingSuitable for Extended Desktop or Mirrored Displays. Customer service from Rankie