I'm using BFGnminer and this is my current hashing rate.

53.49/53.15/27.15

As you can see I'm losing alot of ghashs. I'm using BFGminer on my Mac, using 4 powered usb hubs (Sabrent) and I'm using U1 and U2 ant miners.

Hey guys, I've been wondering what USB hub I should use for Antminer U1 and Antminer U2. I'm currently using Sabrent 10 usb port hub and I don't believe it's working well because not all the usbs are recognized meaning they're faulty and I don't get the full ghs out of each miner or my hub sucks.