The Excellent Quality 10 100 Mbps Ethernet to Fiber - Tripp Lites N784-001-SC 10/100 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. Dip switches allow half or full duplex operation on the fiber port. Power supplied by either AC-DC adapter, or USB connection ( switch selectable ). Tripp Lite one year limited warranty.