Rose Electronics provides a KVM extension solution with the CrystalView DVI EX. It takes DVI video, keyboard, mouse, audio, and USB 2.0 devices up to 1,640ft. over Cat-X UTP cable and its stereo sound can be transmitted in either direction. The remote unit has three integrated USB 2.0 ports and these are expandable to as many as 13 high speed USB 2.0 devices using USB hubs. This can be used for additional devices such as webcams, microphones, speakers, and flash drives. Up to 500MA of power is available at each USB port for running high-power USB devices.