The KVM-402 is a KVM switch that allows access to two or four IBM compatible computers from one PS2 Keyboard one PS2 Mouse and one VGA SVGA or Multi-sync monitor. Switching between connecting computers is as easy as pressing the push button (which is conveniently placed on the top of the switch) or entering hot-key commands from your keyboard. There is no interface card or software to install and the Tower KVM is completely independent from any operating system. Specification 2 unique loose-free cables includedSupports both PS/2 keyboard and mouseKeyboard and mouse emulation for error-free PC boot up.Keyboard and mouse are hot pluggable at any time without turning either the Tower Switch or PCs offUnique Space Saving designAuto-scan automatically selects computers sequentiallySupports Microsoft IntelliMouse (Pro) Explorer OpticalHot-key and push button allow easy computer accessKeyboard states automatically saved and restored when switching computersOperating system independent transparent to all applicationsHigh VGA resolution 1920 x 1440Power-free operation - the Tower KVM draws power from