One point to UP board (UP-CHT01) "bad" :-) design
okay, lets start:
One day, I put active USB-HUB and USB3.0 flashdrive into the same USB double socket (one that close to right side edge) switched power on... And observed white smoke from the underside of the board.
Then I inspect bottom side of the board and found fried U60 chip... it somehow must to protect USB power line (one point to you guys - here no any documentation which elemnts you using @ design) , so I dismount this chip, and powered board - awesome it works fine, even those two USB ports through same active USB hub.
So I have several questions - which chip I can to use as replacement U60, and what you ommit at design stage at USB sockets?,- I wish to protect them much more better.
And last question: what about micro USB 3.0 socket design - can you tell something about it?