Organelle powered by USB hub

Hello, just got my Organelle and connected a powered hub USB hub to it. To my surprise it powered the Organelle without the DC power in… Is this normal ?

Thanks for the answer. The hub I’m using using is a Zero4U that I plan to use with a PowerBoost1000C and an internal battery to have a portable solution. Good news is that there’s a resistor I can remove to prevent backfeed !

Thanks Chris - I did think it was a bit odd and probably NOT a good idea!