"Switch between four separate VGA and audio signals for output to a single monitor or projector. The perfect solution for situations where VGA and audio input ports are at a premium the Converge A/V 4 port VGA switch eliminates the hassle of having to swap out connections to your display and audio receiver while allowing you to select your video source at the push of a button. The included IR remote control allows you to quickly make your input selection from a distance providing a convenient addition to presentation displays trade shows security environments and more. Plus the VS410RVGAA Video Switch comes with an RS-232 Serial port to remotely switch between displays without needing to be situated locally."