Your second link does not work (page not found) but the OP is shipping the devices with a USB 2.0 connector so even if your hub is 3.0, the miners will not have the additional pins to the USB 3.0-specific protocol. But the 3.0 only if you want future proofing but I would recommend getting the USB 2.0.
Actually you WANT a 3.0 hub, since these hubs are usually rated for 1+ Amps. Even though the miner does not use 3.0 data speeds, it does pull alot of power for USB obviously, so a 2.0 hub might not provide enough power.
Thank you for the clarification, I deleted my message to avoid confusion but can you please clarify/recommend what to use to get the maximym power?
From what I gathered in the OP @ 1.5W per MH/s:
| Hashing Speed | Power | | Amps |
| 2 MH/s | 2 x 1.5 W = 3 W | | 3 W / 5V = 0.6 A |
| 3 MH/s | 3 x 1.5 W = 4.5 W | | 4.5 W / 5V = 0.9 A |
| 5 MH/s | 5 x 1.5 W = 7.5 W | | 7.5 W / 5V = 1.5 A |
| 6 MH/s | 6 x 1.5 W = 9 W | | 9 W / 5V = 1.8 A |
It seems that a normal USB 3.0 with 900 mA can only drive the unit at 3 MH/s steady state, anything above that will need a powered USB hub as "Y" cables don't work in USBs.
The hub in the amazon link was 7 ports 60 W = 8.5 W per port so it can drive the unit up to theoretical speed 8.5 / 1.5 = 5.7 MHs
Is this correct?
Question 2In your demo screen the title bar states ... "ethminer" can these sticks be used for anything other than scrypt?