Tripp Lite's 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.