TBC-PSB5603 Port Extender is a high performance, low power 10/100/1000Mbps trunk line extension switch that is the premier choice for small to medium LANs. It provides 2 x 10/100/1000Mbps s ports plus 1 x 10/100/1000Mbps UP LINK port for connection to higher bandwidth upstream devices. Supports standard POE and SPOE inputs. Store-and-forward technology is used to ensure that bandwidth is efficiently allocated to each port. Full line-speed 100Mbps connections to workgroups or servers for easy plug and play, a flexible non-blocking architecture that users can use regardless of bandwidth and media network limitations. The switch supports half-duplex and full-duplex modes of operation, each switch port supports adaptive functions, and the ports use store-and-forward mode. The product is superior in performance, easy to use, convenient and intuitive, providing the ideal networking solution for workgroup users or small LANs.