Using this PoE splitter is easy. First, connect it to your PoE switch or hub. Then, on the other side of the Ethernet cable, you'll get Ethernet and a 5V power supply up to 2.4 Amps. It works great with devices like Raspberry Pi models B, B+, Pi 2, and Pi 3, as well as Arduino boards with Ethernet and micro USB. Just make sure the device has a micro USB power input. Remember, there's a minimum load requirement of 100mA on the 5V power supply. This splitter is only for use with true 802.3af routers. To keep it in good condition, avoid exposing it to extreme temperatures or moisture. If you don't have a PoE injector, you can use our passive PoE cable kit.