High performance HD switch capable of switching three sources on a single screen. This switching function is not performed only by pressing the buttons on the device, but also through an intelligent function. The built-in cable (pigtail) not only reduces costs but also saves users time. Route high definition video (with multiple resolutions up to 4Kx2K at 30Hz) and digital audio from one of the three high definition video sources, also compatible with HD-DVD, SKY-STB, PS3, XBOX, etc. The output sends high definition audio/video signals to a high definition monitor.