SilverStone EC04-E PCI-E to USB3 Card Video Review
 

"The SilverStone EC04-E PCI-E to USB3 Card has USB 3 connections, two are external and one is an internal 19pin connector. It comes installed with the regular size black expansion slot bracket, but a low profile bracket is included. This is a perfect option for adding extra USB3 ports to any system with a free PCI-E 2 slot." ~3dGameMan.com

http://3dgameman.com/reviews/1566/si...ci-e-usb3-card