The Serveredge KD04UV is a 4Port KVM switch that allows access to four computers from one USB or PS/2 keyboard mouse and a VGA monitor. Switching between computers is as easy as pressing the push button or entering hotkey commands from your keyboard. There is no interface card or software to install. KD04UV is independent of the computer operating system.Serveredge KD04UV KVM is ready to run right out of the box and comes with everything you need the switch and a complete set of cables just hook them up and begin. By allowing one console to manage all your computers Serveredge KD04UV KVM eliminates the expense of extra consoles space for extra peripherals and the time wasted accessing different computers.