The tl-sf 1008p 8-port 10/100m Desktop Po E Switch provides the seamless network connection. It integrates 100 Mbps Fast Ethernet & 10 Mbps Ethernet network capabilities. 4 of the 8 Auto-Negotiation rj 45 ports (port-1 to port-4) of the switch support Power over Ethernet (Po E) function. These Po E ports can automatically detect & supply power with those ieee 802.3af 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, ip Cameras or ip Phones, etc. tl-sf 1008p has the priority * function which will help protect the system when the system power is overloaded. If all Po E PDs power consumption is >= 53w, a priority will be arranged among the Po E ports, then the system will cut off the power of the lowest-priority port. tl-sf 1008p is easy to install & use. It requires no configuration & installation. With