HDMI Bi-directional Switch The HDMI signal can go in either direction through this HDMIswitch. The HDMI switch has a button on top. By pressing the button, you can select one of two HDMI sourcedevices (e.g. Computer, Xbox One, PS3) to play on 1 HDMI projector or HDTV, or to play 1 HDMI signal source on one of 2 HDMI displays. Easy to Use Plug and play, no external power and driver required for thisHDMI switch hub, the connection is made only via HDMI cables, it just takes youa couple of minutes to get it to work.