This DisplayPort to VGA adapter lets you connect a VGA computer monitor to a graphics adapter/video card DisplayPort port, eliminating the expense of upgrading the monitor for DisplayPort compatibility. Please Note: This product may be incompatible with some HDTVs. DP2VGA has known issues with LCD HDTV's, Plasma HDTV's, and older projectors. DP2VGA is intended for use with computer monitors. To use DisplayPort with LCD or Plasma HDTVs please use StarTech.com's DisplayPort to HDMI Video Adapter Converter(DP2HDMI) or see related products for other suggestions.