4 x 10/100/1000BASE-T Gigabit Ethernet RJ45 copper with IEEE 802.3at PoE+ Injector (Port-1 to Port-4). 4 x 10/100/1000BASE-T Gigabit Ethernet RJ45 copper. Complies with IEEE 802.3af/at Power over Ethernet end-span PSE. Up to 4 ports of IEEE 802.3af/at devices powered. Supports PoE Power up to 30.8 watts for each PoE port. Each port supports 55V DC power to PoE powered device. 60-watt PoE budget. Auto detects powered device (PD). Circuit protection prevents power interference between ports. Remote power feeding up to 100m with standard mode, 250m with extended mode.