Number of Computers Supported: 4Maximum Video Resolution: 1920 x 1200USB: YesDVI: YesNumber of USB Ports: 8Number of DVI Ports: 20Form Factor: Rack-mountableHeight: 4.3"Width: 12.5"Depth: 6.4"Weight (Approximate): 4.90 lbEnvironmentally Friendly: YesEnvironmental Certification: RoHSCountry of Origin: United StatesDVN-4Quad is a dedicated multi-platform KVM switch capable of managing up to 4 different computers through four DVI-D monitors, one USB keyboard & mouse, a single set of speakers and a USB 2.0 Device. The USB emulation technology utilized by DVN-4Quad enables immediate hotkey source switching through a remote USB keyboard and mouse. DVN-4Quad uses single link connectors providing high resolutions of up to 1920x1200 with zero pixel loss from TMDS signal correction.