Share a single hdmi display or projector between three hdmi video sources with device priority and signal loss switching the vs123hd 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 yoursquoll be able to share an hd