Atlona AT-APC21A is a high performance, signal sensing VGA switcher. Simply senses the presence of a video signal and automatically switches to the active VGA source to be routed to a display. The automatic selection of the active channel eliminates the need of manual control. However, a manual control button is also available to switch between desired channels. Switcher supports 350 MHz bandwidth with maximum VGA resolutions up to 2048x1536.