The WS-X4506-GB-T provides 6-port 10/100/1000 and 6-port SFP (any combination of up to 6 ports can be active at one time). It features PoE IEEE 802.3af and Cisco prestandard (RJ-45 only). The WS-X4506-GB-T provides full line-rate Gigabit switching on all ports. This module gives customers the choice of RJ-45 with or without PoE and SFP without incurring extra costs.It is designed to power IP phones, wireless base stations, video cameras, and other IEEE-compliant appliances. Also designed for service providers to run point-to-point Gigabit Ethernet over single-mode fiber.