Gefen EXT-HDMI-442 4x2 HDMI Switcher (Discontinued by Manufacturer) Switch easily between any four HDMI sources and outputs are mirrored to two HDMI Displays Additional digital coax audio output extracted from HDMI input for easy connection to multi-channel audio receivers Extends the range of HDMI compliant device by equalizing and reclocking the HDMI signal Maintains high resolution video - beautiful, sharp HDTV resolutions up to 1080p, 2k, and computer resolutions up to 1920 x 1200 are easily achieved Discrete IR remote (included) ,Serial RS-232 remote port, HDMI compliant, HDCP compliant