The N785-001-SC 10/100/1000 gigabit media converter is an economical way to extend the distance up to 2Km of network nodes by converting Cat5/6 UTP cables to fiber optic. The media converter features automatic mdi/mdi-x configuration, and the UTP port senses the network speed automatically as well. Supports half or full duplex operation on the fiber port. Power supplied by external ac adapter.