Many powered USB hubs will source current back to the host (backfeeding) even though they are not supposed to do this. You want to get a powered USB hub that doesn’t backfeed. Here is one such hub:
https://www.modmypi.com/raspberry-pi/accessories-198/usb-hubs-204/new-link-4-port-usb-hub-uk-5v-2a
or
This has historically been a problem with the Raspberry Pi mini computer, which is why many Raspberry Pi shops carry these powered hubs that are known to not backfeed, and they should be a great choice for the Organelle as well.