The Tenda TEF1105P-4-63W is a 5-Port 10/100 Mbps Desktop Switch with 4-Port PoE ports. The TEF1105P provides 5 Port 10/100 Mbps adaptive RJ45 ports that support MDI / MDIX auto-flip function per port, and enables wire-speed forwarding. Ports 1-4 have PoE function, support IEEE802.3af / at standard, automatic detection and identification standards-compliant powered devices, through the network cable for power supply. Turn on Support "network extension mode" to extend power transmission distance up to 250 meters, to meet the long-distance power needs.