Cable power hdmi auto switch cable power cpavsw0001 p the hdmi auto switch 3t01 is the latest edition high performance hdmi auto switcher from ce link this switcher not only has a manual key press switching function it also has an automatic function while routing high definition video and digital audio from any one of three sources to its single output p p the inputs accommodate the simultaneous connection of up to 3 x high definition video sources which are compatible with hd dvd sky