Introduction The Digital Visual Interface is a high-quality, uncompressed data link between a host processor video card and a display peripheral. Optical technology for this transmission stretches the performance beyond the limitations of copper wire with longer length, data security, negligible RFI/EMI and the elimination of costly analog distribution systems. The EDID in a display can be read and restored by just plugging it to the display. This self EDID programming feature makes the installation of M1-201SA more easy and flexile at any variable resolution display systems. The four (4) optical data, Red, Green, Blue and clock can be extended up to 500 meters (1,640ft) over a pair of LC duplex multi-mode fibers at WUXGA (1,920x1,200) at 60Hz vertical refresh. An external power adapter is required for the receiver module, while most video cards can provide +5VDC power to the transmitter module. The transmitter and receiver modules are clearly labeled to prevent reverse installation of the modules. Fiber optic DVI, Extension module, Optical DVI Extender, Optical HDMI Extender, Optical USB Extender, Optical firewire Repeater: The Digital Visual Interface is ahigh-quality, uncompressed data link between a host processor video card and a display peripheral. Optical technology for this transmission stretches the performance beyond the limitations of copper wire with longer length, data security, negligible RFI/EMI and the elimination of costly analog distribution systems. The EDID in a display can be read and restored by just plugging it to the display. This self EDID programming feature makes the installation of M1-201SA more easy and flexile at any variable resolution display systems. The four (4) optical data, Red, Green, Blue and clock can be extended up to 500 meters (1,640ft) over a pair of LC duplex multi-mode fibers at WUXGA (1,920x1,200) at 60Hz vertical refresh. An external power adapter is required for the receiver module, while most video cards can provide +5VDC power to the transmitter module. The transmitter and receiver modules are clearly labeled to prevent reverse installation of the modules.