The Gefen CAT5-1600A extends VGA and Audio up to 1000 feet (300 meters) and USB up to 330 feet (100 meters) using CAT-5 cables. Display resolutions up to 1920x1200@60Hz are supported. A local monitor can be connected to the Sender Unit and up to two monitors can be connected to the Receiver Unit. Four USB connectors on the Receiver Unit allow control of the computer system from a KVM workstation. Mini-stereo connectors extend analog audio. The unit has a Standby Mode for energy savings. Color, Brightness, and Focus controls compensate for variations in the signal due to extension distances and skews found in different brands of CAT-5 cabling. Works with both PC and Mac systems.