Leon 84 Report post Posted May 8, 2014 Hi,ExpressCards is a neat way of extending your laptop with new functionality - in this case we are going to have a look at USB 3.0 - my test machine is a Lenovo x201s running Mavericks 10.9.3 The Sunix USB 3.0 ExpressCard The card is automatically detected - however you will need to install a kext to get it to work. GenericUSBXHCI.kext - Download: GenericUSBXHCI.kext.zipSo lets look at performance using a external USB 3.0 disk - 7200rpm.USB 2.0 Performance:USB 3.0 Performance: Share this post Link to post Share on other sites
