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USB3.0 PCIe card for older motherboard

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have just bought and install well a cheap USB3.0 PCIe card for my ASUS P6TSE running 10.9.2




driver can be obtained from




work well so far.



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it is a standard NEC/Renesas Electronics USB3.0 20200A chip. and no name manufacturer.


I found using


work also.


also work. just add this in Extra if you are using Chameleon to boot.


no patch needed.

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after changed to Yosemite, the GenericUSBXHCI.kext does not work properly. Found using Viktor Vos modification:-


1. sudo nvram boot-args="kext-dev-mode=1"

2. download source
3. download xcode, signing in with apple developer account and requesting certificates
4. removing _onThunderbolt functions from source as xcode 6 raised like 8 errors on it.
5. signing with my mac developer account and then build/compile.
6. after installing the resulted .kext with kextwizard i rebuild the mkext with:
7. sudo kextcache -m /System/Library/Caches/com.apple.kext.caches/Startup/Extensions.mkext /System/Library/Extensions
8. reboot & working for me.


the kext:



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