Bests & Worsts Reviews from Amazon

I compared the D-Link USB 2.0 7-Port Hub to the Anker Uspeed USB 3.0 9-Port Hub and the Satechi 12 Port USB Hub for the purpose of mining Bitcoins with ASICminer - USB ASIC Bitcoin Miners. The Anker is considered the "gold standard" but is pretty expensive: more than $8/port. The D-Link works out to less than $4/port. The Satechi works out to almost $2/port. For the tests, I used an Ubuntu 13.04 64-bit Desktop system with an Intel motherboard. Each hub was plugged into a USB 3.0 port. I compiled cgminer and libusb on the machine. Without compiling libusb, I found you can't get full speed out of the ASICminer. The Anker Uspeed USB 3.0 9-Port Hub can run 10 miners. The miners are detected as soon as cgminer starts up and quickly stabilize at full speed. I've run 10 miners on the hub for several days in a row with no cooling issues and almost no . The hub actually will work powered off the motherboard. The power supply for the hub is a separate power-brick with standard 2-prong plug. The D-Link USB 2.0 7-Port Hub can run 7 miners. About half the miners are detected on start up and the rest show up on the first hot plug sync. The miners take several minutes to stabilize in speed. One port seemed to have higher hardware errors. I suppose it's the sideways orientation of the miners, but I had to set a fan blowing across the miners to get them to stabilize properly. The power supply is an integrated power transformer. The two-prong plug is oriented at a 90-degree angle. The Satechi 12 Port USB Hub appeared to be able to run 12 miners. Only one miner was detected at start up. The rest took several minutes but eventually popped up. Once the miners were detected, it took a fairly long time to stabilize. I almost gave up on them but after about 10 minutes, cgminer reported all 12 miners running near full speed. There were fairly high hardware errors on several ports but the throughput levelled out at full speed. Ultimately, the blocks submitted to the pool must not have been accepted. None of the miners seemed to be submitting good blocks. Seemed to work but didn't.