I moved all mine to POE with adapters at the ends, which makes wiring SO MUCH easier and cleaner. I have one central switch that powers all the devices via regular Ethernet cable. Pull cable through the attic, drill a tiny hole in the ceiling or soffit, and my cameras are up and mounted out of the way. I can hard power cycle them remotely, as well, through the POE controls in the switch. Only possible improvement would be if I could get the cameras to use Ethernet instead of WiFi.

This is one of the adapters I use. I bought several different ones to test and they all worked fine.