That's only for OS X Yosemite. I have not updated the pack for OS X El Capitan. As for getting the wifi key working idk. Someone with your key tried the driver from this website, installed it and worked for them. They were however using Yosemite.
Oh, the first page of the tutorial it say that USB3 works, and when i go in the download page for the H81M packs the release 0.7 say:
If i decide to don't use the back USB3.0 ports, could you tell me if on El Capitan the wifi key TP-Link WD3200 works, or suggest me a driver or kext? Because i don't have ethernet cable and i really need internet on my desktop.
- Added updated patched IOUSBFamily Kext which enables all USB 3.0 ports, faster restart and shutdown speeds, and stability when sleeping and waking