The JDA159 adapter allows you to quickly and easily connect your Mac® or PC to a 4K HDTV or other display device using a HDMI™ input. First connect the JDA159 to your computer. Then plug your existing HDMI™ cable from your display into the mini DisplayPort™ adapter. Compatible with both DisplayPort™ 1.2 and Thunderbolt™ 2, our JDA159 quickly converts the DisplayPort™ video signal into a HDMI™ signal, and with its plug-and-play technology, there is no need to download any drivers.