When the Raspberry Pi 3 Model B+ was announced in March ... It’s also ridiculously cheap, with a PoE injector adapter (RJ-45 plug & 2.1×5.5 mm power jack to RJ-45 jack) going for about 80 ...

All models up to the Raspberry Pi 3 require a micro USB power connector, while Raspberry Pi 4, Raspberry Pi 400, and Raspberry Pi ...