TRENDnet's TEG-448WS 48-Port 10/100/1000Mbps and 4-Slot Mini-GBIC Web-Based Smart Switch delivers high performance and scalability for large enterprises. Its Mini-GBIC slots can use either single or multimode fiber for constructing a high-speed network backbone. The 48-port Copper Gigabit ports support Auto-MDIX and Auto-Sensing for troublefree network integration. The TEG-448WS supports advanced network protocols such as VLAN, QoS, Trunking, and Mirroring.