The x79 DMG has been updated with USB fixes for Mac OS X 10.11 including USB 3.0. If you need to use USB 3.0 in a production environment then we would strongly recommend using 3rd party card that is natively supported. We will be adding a section regarding USB in general soon where we will list recommended cards and benefits over other cards.
We are also still looking for dedicated writers to help us continue to keep are guides up to date. If you are interested please contact us at: AKern@RampageDev.com