The Gefen VGA Matrix Switch offers flexibility and convenience by routing high-quality VGA and analog audio from any of four VGA/audio sources to any of 4 VGA displays and audio devices. The Gefen VGA Matrix Switch works with a wide variety of VGA sources such as computers, security cameras and DVRs. Every source is accessible at any time by any display by selecting it with the included IR remote, front panel buttons, or RS-232 control.