Trendnets tfc 1000 series fiber media converter transforms 1000baset copper gigabit media to 1000basesxlx fiber gigabit media and vice versa the 1000baset port supports full duplex gigabit connection at wire speed with rj45 connector the fiber gigabit connection supports shortwave sx or longwave lx laser optic with multi mode or single mode sc type connector this converter will give your copper gigabit connection the ability to interface with fiber connection over a distance up to 2