The CE690 is a DVI Optical KVM Extender that overcomes the length restrictions of standard DVI cables by using fiber optics to send high definition audio, video and control signals over long distances. The CE690 can transmit KVM DVI signals extremely long distances- up to 20 km away from the source. The extender takes audio/video streams from the local source and serializes the data to pass it over a single 3.125 Gbps optical link, for resolutions up to 1920 x 1200 @ 60Hz, 24-bits, with picture perfect quality.1 x CE690L DVI Optical KVM Extender (Local Unit)1 x CE690R DVI Optical KVM Extender (Remote Unit)1 x 2L-7D02U Custom KVM Cable Set (1.8m)1 x LIN6-04U1-V1CG USB Cable (1.8m)2 x 0AD8-1605-24M1 Power Adapters1 x Mounting Kit1 x User Instructions