Hi, Im currently using a 2011 17in MBP. As many of you would know, this boy only has USB2.0. I bought a express card USB3.0 last year and it was working all great with tonymacx86's USB3.0 driver. However, last week I had my logic board replaced. After that, my driver no longer worked including my USB3 express card. I noticed that under Systems/Library/Extensions, there is a kext file called AppleKextExcludeList.kext. And bingo, the driver was listed in there. Im trying to edit the plist but it keeps on telling me all I can make is a duplicate. I tried editing the permission to me from the Info menu. Still didnt work. I just want to delete the GenericUSBXHCI from there. Running 10.9.1 Maverick. Any ways?