I was actually wondering if I should use this! Thanks for the tip! Currently, I have 4 DLink7porthubs connected to exactly a hub like this...
So now my setup is 4-Dlink hubs > 10port Rosewill > Raspberry Pi
Do you think I can add 2 more Rosewill hubs to connect to my current Rosewill?
4-Dlink hubs+2-10port Rosewill > 10port Rosewill > Raspberry Pi
So I might get 10pcs of the U2s...
In another thread regarding Pi Mining... it's been discovered that a Pi has the ability to talk to around 120 USB devices ( count each miner as devices, not routers unless they show AS devices ) and not the supposed max of USB 254 devices ( with first as device 0 and count to 254 making 255 ).
It's still unclear if it's a device issue or lack of ram, or what that makes it close to half the total USB, just keep each one as powered hubs and there should be no worries.
Other posts to look at in regards to this....
max hubs....
https://bitcointalk.org/index.php?topic=518812' other ' way to keep it profitable
https://bitcointalk.org/index.php?topic=514868