The VS0801A 8-Port VGA Switch with Auto Switching, connecting eight audio/video source notebooks to a single monitor or projector with full audio will enable you to quickly switch between the devices for any presentation occasions where multiple audio/video playing are simultaneously required, such as meeting room, media centers, class rooms etc.VS0801A built-in bi-directional RS-232 serial port for high-end system control, and advanced RS-232 control. With the ability to use high-end serial control devices via RS-232 commands allows the VS0801A to be controlled by secondary systems with advanced functions such as: Power on Detection, Auto Switching and Pushbutton Lock. The IR Remote control convenient front panel pushbuttons, and new port switching VGA cable allow you to quickly and easily toggle between VGA/ Audio sources, while the front panel LEDs indicate the source device at a glance.