StarTech.com 2 Port PCI SuperSpeed USB 3.0 Card Adapter PCIUSB3S2

Full Details from Amazon.com : http://www.amazon.com/gp/product/B004QNHNUM?tag=onigi-20

StarTech.com 2 Port PCI SuperSpeed USB 3.0 Card Adapter PCIUSB3S2

SuperSpeed USB 30 connectivity with backwards compatibility to USB 201x devices from a single PCI card
Using USB 30 devices with this PCI Card will allow data transfer rates at up to 13 Gbps
Backed by a StarTechcom lifetime warranty and free lifetime technical support
2 external USB 30 ports
SuperSpeed USB 30 compliant host connection
Backward compatible with USB 201x devices