woh thats impressive...how are you running so many at max speed for nearly 5 days that stable?? I don't even think I have achieved that in my tests. What kind of hub do you have? lol
I'm using 4 Anker hubs with 2 on each, they just aren't stable with more than 2 on each one. All are daisy chained together going to one USB port on the computer. These things just are so ragged edge on USB power consumption when turned up that this is the only way I've been able to get reliable performance. I tried a few different hubs previously and they were worse than these.
I ran into something else interesting along the way the other day when I got the last pair of these. I had been running them on a USB2 bus and the 6 were always fine at full speed. After stepping up to 8 of them, I'd consistently see one slow down after a while. Moving them over to the USB3 bus of the same system fixed that. I wouldn't think the USB2 bus was saturated, so I don't really know why.
https://image.ibb.co/f5wQwH/IMG_20180205_012449.jpg