PoE Extralink 48V 48W power supply Power supply designed to supply electricity through selected wires of twisted-pair cable to network devices such as AP, cameras, etc. This solution enables transmission of network data while supplying power using the same cable. The power supply has a 1.2 meter long power cable terminated with a typical computer connector type C14 and has two RJ45 ports. One of them connects the device that is to be powered and the second one is used for a patchcord connection to a switch or router.