8-Port Gigabit Desktop Switch with 4-Port Po E provides the seamless network connection. It integrates 1000Mbps Gigabit Ethernet and 10/100Mbps Fast Ethernet network capabilities. 4 of the 8 Auto-Negotiation RJ45 ports (port-1 to port-4) of the switch support Power over Ethernet (Po E) function. These Po E ports can automatically detect and 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-SG1008P 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. 8 10/100/1000Mbps RJ45 ports With four Po E ports, transfers data and power on one single cable Working with IEEE 802. 3af compliant PDs, expands home and office network Requires no configuration and installation