The DVI FMP sender unit plugs into your computer. The DVI FMP receiver unit plugs into your DVI display - up to 2000 feet away. Multi mode LC fiber optic cable (4 strand) connect the DVI FMP sender and the DVI FMP receiver units to each other. Breakthrough Auto-EDID programming technology quickly and easily collects and preserves monitor resolution/capability information inside the DVI FMP Sender, so that the computer properly syncs up with the display at all times and "knows what it is connecting to" -- eliminating the necessity of an add-on device such as Gefen's DVI Detective. All-fiber signal transmission media insures that the video signal possesses complete EMI (electromagnetic interference) invulnerability.