A PoE-powered PoE-sourcing ethernet switch. Used for network equipment with PoE signal function, as relay equipment to achieve signal extension. Total output power 25.5w, Maximum output each channel of 4 ports 15.4W. Not able to provide all 4 port at 15.4W in the same time. Total output power of 4 ports should be less than 25.5w. Applicable Range: A Used with AP, IP camera, IP telephone and the other network equipments in the situation of the lack of power line or far away from the power outlets. A Installed at hotels, schools, buildings,etc.When using and installing, please strictly follow the product power and related electrical parameters, and follow the product instructions. Network Medium: Cat5 or better UTP cables(less than 120m) ;PoE input-1 RJ45 port, PoE output: 4 RJ45 port; PoE Standard: IEEE 802.3at (power-in),IEEE 802.3af(power-out);PoE Port Power: input power-25.5Watts,output power-24Watts;PoE Power Supply Type:1/2(+),3/6(-),Mode A,End-Span; NOTE: 1. Using high qual