24-port 10/100BASE-TX Fast Ethernet RJ45 copper. 2 x 10/100/1000BASE-T TP and 2 x 1000BASE-X mini-GBIC SFP interfaces. Complies with IEEE 802.3af/at Power over Ethernet end-span PSE. Up to 24 ports of IEEE 802.3af/at devices powered. Supports PoE Power up to 32 watts for each PoE port. Each port supports 54V DC power to PoE Powered Device. 300-watt PoE budget. Auto detects powered device (PD). Circuit protection prevents power interference between ports. Remote power feeding up to 100m with standard.