Connect Gigabit Ethernet copper ports to fiber optic cable. - Bring fiber to the desktop more conveniently and at a lower cost than installing fiber NICs. - Compact size—measures just 0.8"H x 1.8"W x 3.4"D. - Powered by a universal AC power supply or the optional rackmountable PowerTray. - Auto MDI/MDI-X means you never need to worry about what kind of cable to use.