In don’t know if mine are under powered, or what, but about twenty percent of the time one MFD would not come on when they were hooked up to the HUBs and moving them to the mobo ports fixed that immediately.
I use a Powered USB 3.0 (if your MB supports) 7-Port Hub and have no issues, which runs off a 9 foot 3.0 cable… can get’em off Amazon for $29 USD for the 7 Port or $15 USD for a 4 Port. The 9’ cable was like $6 USD.