4 sources + 4 displays = an easily integrated hdtv matrix system. the lenkeng 4x4 hdmi matrix switches any of four hdtv sources to any of four hdmi displays. the 4x4 hdmi? matrix routes high definition video in multiple vedio resolutions up to 1080p plus multi-channel digital audio from any of the four hdmi? sources to the displays. four outputs gives you the choice of sending high definition audio and video signals up to four displays. any four inputs to any four outputs matrix switching allows for maximum versatility for integrated systems. the 4x4 hdmi matrix eliminates the need to disconnect and reconnect sources to a display equipped with one input. it works with hd-dvd players, tivo systems, ht pcs, and satellite set top boxes that connect to an hdmi display. every source is accessible at all times by any display by selecting it with an ir remote. note: the switching is done by using either the rmt-16-ir remote control or through the rs232 port. any hdtv with dvi inputs can be connected to the hdmi outputs of the matrix by using a dvi to hdmi adapter if the cable used is dvi. features the lenkeng 4x4 hdmi matrix is housed in a metal box for better rf shielding. it allows any one of the four hdmi displays to view any one of the four sources at any time, just by a "press". it maintains resolutions up to 1080p and 1080i, highest hdmi single link video resolution and highest hdmi digital audio signal. hdmi or dvi to hdmi cables are used to connect the inputs and the matrix output. each display's inputs can be switched with the ir remote control or through rs232. catherine4531 at hotmail.com skype:catherine4531