The Fiber Optic 3-Port Mini Switch has two 100Mbs fiber optic ports and one 10/100Mbs twisted pair copper port. These devices meet IEEE 802.3, 802.3u and 802.3X Standards. These switches provide Media conversion for twisted pair and fiber optic media types and extends network spans. These units provide 10/100Mbps, auto-negotiation on the twisted pair port. An external power supply is included.