The CE680 is a DVI Optical KVM Extender that overcomes the length restriction of standard DVI cables by using optical fiber to send high definition audio, video and control signals over long distance. It accepts audio-video stream from a local source and serializes the data to pass over a single 3.125 Gbps optical link (for resolutions up to 1920 x 1200 at 60 Hz, 24-bits).