The vr171p4 is a 17" lcd rack mounted unit that features Quad Splitter and Sequential Switcher. This high resolution Lcd panel has a pixel count 1280 1024, and fits in a standard 19" rack 8U high. The Quad Splitter allows all of the four channels to appear on the monitor simultaneously either using the full screen or picture-un-picture fashion. Other features include digital freeze and zoom functions as well as 19:9 aspect ratio via an on screen menu. For added flexibility, this unit can accommodate 4 NTSC/PAL composite video, 1 S-video or 1 SXGA for computer monitoring (S-video and SXGA inputs are only available in full screen mode). Unit comes complete with power supply and owners manual.