5 x 10/100Mbps Fast Ethernet ports. 4 ports supporting 51V DC power to PoE powered device. Complies with IEEE 802.3af/at Power over Ethernet end-span + mid-span PSE. Up to 4 IEEE 802.3af/2 IEEE 802.3at devices powered. Supports PoE power up to 30 watts for each PoE port. 60-watt PoE budget. Hardware DIP switch for "Standard" and "Extend" mode selection; the “Extend” mode features 30-watt PoE transmit distance of 250m at speed of 10Mbps and VLAN isolation. Auto detects powered device (PD). Circuit protection prevents power interference between ports. Remote power feeding up to 100m in the standard mode.