I think there is a hub missing in the list, only the ultimate hub!
Here is a copy of my post:
Looking to power all your Block Erupters in your PC? We have the solution at
WTCR.
A tried, tested, and true hub solution with the lowest possible cost-per-port.
Utilizes your PC's power supply for it's 5v. Powered with a floppy connector but includes a molex to floppy adapter.
Running for weeks stable with all 13 ports populated with Block Erupters, it's safe to say these are the best hubs around.

Got some CM Stackers lying around at home? Fill up all the bays with Block Erupters!
Questions? Simply email
sales@wtcr.ca or inquire through
our website.
Resellers? These are an excellent item to include with bundles of USBs as all Block Erupters need a hub!