The Gefen 4x1 DVI Switcher offers unparalleled flexibility in the setup of high definition theater and electronics systems. A plug and play solution, the 4x1 DVI Switcher connects four DVI source devices, such as DVI-based computer systems, and links them to one DVI display. The 4x1 DVI Switcher switch easily between any four DVI sources. Extends the range of DVI compliant device by equalizing and reclocking the DVI 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) Switch using discrete contact closure HDMI pass-through HDCP pass-through