Hopefully that will work just fine for you.
However, USB 2.0 (spec'd at .5 amp per port) just doesn't seem to allow any power overhead. Wouldn't it be better use a USB 3.0 like this one, to guarantee 1.5 amps per port:
http://www.coolgear.com/productdetails1.cfm?sku=USBG-7U3ML&cats=434What about just popping them into open blue USB ports on our rigs?
Hopefully, indeed. I thought about going with a USB 3.0 hub for the extra current as well.
Friedcat said that the sapphire batch draws 500-510mA, so it should be fine, but we shall see.
Either way, I'll post results and power consumption shortly after I get my 4 sticks.