Hi, they can be powered, however I’ve been using these hubs for 1-2 years, but they are cheap from Amazon. I curently have this one on there with a Targus one attached.
The only devices drawing power will be the Impact LX49 atm, as well as the iPad.
Nothing really, other than cancelling my Roland Subscription(which was due to the fact that we play areas without mobile reception. Nothing worse than it asking for verification etc) @ 2 months ago.
I’ll send a link soon.