Hmm .. I hadn't even considered trying a powered USB hub. Thank you for this suggestion. This seems like it might be worth trying in my situation, considering that I'd like to use both an Omega2 Pro and and an Omega2+ for my project, and that I've been scratching my head about how to deliver power to both of them simultaneously using a single power source.
Is there a specific powered USB hub that you would recommend? I found a 4-port one on Amazon that seems reasonably priced, but what I don't like about it is that there are on/off buttons for each of the 4 ports.
It's a nice feature, I agree, but I feel it's only a matter of time before one or more of the ports gets accidentally turned off within the enclosure (from it tipping over accidentally, etc).
Also .. it'd be a huge bonus of the powered USB hub had single power button on it .. which would allow me to turn both Onion devices on or off using a single button.