The Reverse PoE Switch provides power and data from a single point, using both of Power over Ethernet (PoE) & Reverse Power supply over a single Cat-5 cable. The eight Fast Ethernet ports can be used for any 10/100 /1000 Mbps link and four of 1-8 port can supply industry-standard IEEE 802.3af power. Advanced auto-sensing algorithm gives power only to IEEE802.3af end devices, so no need to worry about damaging proprietary PoE or non-PoE equipment. In addition, it discontinues the power when PoE devices are disconnected. Easy and reliable, the Reverse PoE Switch automatically determines PoE requirements, speed, duplex, and cable type using Auto Uplink™.