Gigabit 48V 30watt PoE Injector Adapter Power Over Ethernet 802.3at af 1000Mbps

Raspberry Pi 3B+ can work with this poe injector after installed this Po E hat or micro USB Po E Splitter This injector lets you power 802.3af compatible devices, with no additional adapter needed. Just plug the network cable(not included) into your network switch and into the Data In port, then plug the cable to your device into the Po E port with your existing network cable This Adapter support 10/100/1000Mbps gigabit ethernet connection, RJ45 Po E port using 4,5,7,8 pin as power transfer, Please do not connect any device that does not support the Po E port, this will damage your device This is an 802.3af compatible device, but it does NOT include the 802.3af/802.3at compliant detection feature. It supplies power NO MATTER WHAT, so don't plug the Po E side into anything that isn't ready for it Compatible all 802.3af Po E power device as IP Phone, IP camera, Gateway, Switch, or More.