The Pi does not support usb 3.0 period. Barely supports usb 2.0. Read about it at the Pi foundation web site, been a topic of discussion since the first Pi came out.
I know a few have been able to get a 3.0 hub to work sorta, I wouldn't waste my time when 2.0 is plug and play and generally a less expensive hub. I started with a few 7 port d-links but have all 10 port rosewill's now, they run 8 sticks without problems with the supplied psu (wall wart). You can use a pc psu's 5v rail to power the hubs if you can diy the connections. 5 volt power supplies are cheap on evilbay, about 40 bucks for a 30 amp psu, add your own connectors.
$881,
btc may hit $900 today!!!! ROI+ in 6 weeks. 
I know a few have been able to get a 3.0 hub to work sorta, I wouldn't waste my time when 2.0 is plug and play and generally a less expensive hub. I started with a few 7 port d-links but have all 10 port rosewill's now, they run 8 sticks without problems with the supplied psu (wall wart). You can use a pc psu's 5v rail to power the hubs if you can diy the connections. 5 volt power supplies are cheap on evilbay, about 40 bucks for a 30 amp psu, add your own connectors.
$881,
btc may hit $900 today!!!! ROI+ in 6 weeks.