The Black Box ServSwitchâ„¢ Single DVI CATx KVM Extender for USB, you can send your keyboard, mouse, and a DVI-D video signal up to 400 feet (121.9 m) over CAT5, CAT5e, or CAT6 cable.
Just connect a keyboard, mouse, and DVI-D monitor directly to the computer on the transmitting end of the link and a KVM console with a DVI-D monitor on the receiving end. This method of dual access enables you to use your computer at either location.