The TP-Link TL-SG1008P Gigabit Desktop Switch is an eight 10/100/1000 Mb/s port unmanaged switch that requires no configuration and provides 4 PoE (Power over Ethernet) ports. It can automatically detect and supply power with all IEEE 802.3af compliant PDs (Powered Devices). In this situation, the electrical power is transmitted along with data in one single cable, allowing you to expand your network to where there are no power lines or outlets, where you wish to connect devices such as APs, IP cameras, IP phones, and more.