What This Product Does 8-Port 10/100Mbps Switch with 8-Port PoE provides the seamless network connection. It integrates 10/100Mbps Fast Ethernet network capabilities. . How This Product Works 8 Auto-Negotiation RJ45 ports (port-1 to port-8) of the switch support Power over Ethernet (PoE) function. These PoE ports (port-1 to port-8) can automatically detect and accept power with those IEEE 802.3af/at compliant Powered Devices (PDs). In this situation, the electrical power is transmitted along with data in one single cable allowing you to expand your network where there are no power lines or outlets, where you wish to fix devices such as APs . . Easy To Use WI-PS108R is easy to install and use. It requires no configuration and installation. With outstanding performance and quality, the WI-PS108R is a great selection for expanding your home or office network. Reverse PoE