Maybe I'll post a bit about the mysterious Sierra Controller.

(drum roll please.....)

...

...

"The Controller" is simply a computer that can run cgminer, and has a USB port.

That's it.



We're recommending it be a linux box, but other than that it could be most anything: Your desktop. That old laptop that's been sitting in your closet for the last few months. A 1U (or 2U, if you prefer) linux server that is rack-mountable. Or even a Raspberry Pi.

Though until we can do more testing, we don't know how many Sierras a single Raspberry Pi could control.

A single Sierra is a 1.2THash/sec machine, remember. So the difficulty setting you choose has a lot to do with how chatty that Sierra will be. (We obviously do not recommend using a difficulty level of 1 or 2 on a Sierra. It'd be a waste.)

So, if you want, you can BUY a low-end linux server to act as the controller for the Sierra(s) that you have bought. (And of course, with every order of 10 or more we provide that controller.)

But it's quite probable (if you're a geek) that you already have a computer around that you can plug your 1.2 THash/sec Sierras into.