The VC981 is an active Mini Display Port to HDMI adapter that allow you to connect your Mini DisplayPort/DisplayPort output device to the HDMI input of a 4K TV or other display. The ATEN VC981 is an active adapter, featuring advanced chips which ensure stable video signal conversion even when the video source does not support dual-mode DisplayPort (DP++).* Moreover, support for resolutions up to 4K make this adapter ideal for users who require a high performance signal conversion solution. * Dual-mode DisplayPort (DP++) can directly process the signal from DisplayPort to HDMI or DVI signals.