The easiest and best way to connect a DisplayPort laptop or desktop to your HDMI display – in one complete cable For the simplest and most discreet installation, this DisplayPort to HDMI cable connects your DisplayPort video source to the HDMI port on your display. It doesn’t need a power source, unlike some converter dongles that require active power and separate bulky video cabling. This cable lets you enjoy movies on a big-screen HDTV, extend your desktop to a second monitor (up to 4K@60Hz) for an expanded workspace or show presentations on a projector at school or work without needing any other adapter or converter.