I'm going to be setting up a few Pi3s, maybe 3 B+ if I can get some, but I'm running into an issue with power. I would prefer to be able to connect them all to a powered USB hub and have them all run off one small hub instead of having a bunch of power adapters. Trouble is, I'm having trouble finding a USB hub that can output 2.5 amps over all the ports. I know most USB hubs have either 1.2 amps 2.1 amps, but I'd prefer to have the full 2.5 amps if possible.
I'm probably going to be getting the stacking case that holds four or more Pi boards, so if I can hook them all up, add hard drives, and have the Pis themselves powered off a single USB hub, that would be ideal. We are also doing this in an RV, where space is limited, which is why I want to do it in the way that takes up as little space as possible.
I've already found 1.5 foot ethernet cables, so that's easy enough, but if I could somehow make everything into as small a space as possible, hide it away in a closet and leave it, that's what I want. I'm also hoping that I could just write a script to someone shut them all down from my laptop, and then when we get to our destination, I can just turn on the hub and turn them all back on.