The VS123HD is 3-port HDMI® auto switch features three prioritized HDMI input ports. If the active HDMI source is turned off, disconnected or otherwise lost, the switch automatically selects the next available HDMI signal as the priority output, ensuring the display is always receiving a signal. The automatic switch includes an IR remote control, so you will be able to share an HD projector or display between three HDMI audio/video sources, with the option to manually control the switch from a distance or through the easy-to-use front panel toggle button.