4x2 (4:2) HDMI Video Matrix Switch Switcher Selector + 3D EDID RS232 Support with Remote Switch HDMI between 4 sources and 2 displays. True matrix (any input to any output simultaneously, the same input to all outputs, or any combination) New features include upgraded front LED panel, IR Extension, EDID memory/mgmt, and control functions All, Off, EDID, Recall, Memory, and Lock Features Fast Speed Start which enables switching in as little as 2 seconds Controls: front panel, IR remote with IR Extension, or RS-232 port for 3rd party control. Rack mountable (brackets included). Supports HD resolutions 480i/480p, 576i/576p, 720p, 1080i/1080p, and DVI up to WUXGA 1920x1200. Supports HDMI 1.4a 3D formats