The VS84 video splitter duplicates the video signal from an input source (computer) and route it to up to 4 display devices (monitors/projectors). However they go beyond being merely duplicators in that they also enhance the video signals over distances up to 65 meters. Furthermore they can be cascaded three levels to additional ATEN video splitters to support many numerous display devices. And they mount inconspicuously on the wall or out of sight.