STW PCE4USB-R01 4-Port USB 3.0 PCI-Express to USB3.0 5Gb-High Speed Expansion Card - Black
Compatible with PCI Express 2.0 specification; USB 3.0 transmission speed up to 5Gbps compatible with USB 2.0 / 1.1; Powered by large 4-pin connector; supports USB hot swapping plug and play; Low power consumption and energy-saving Chipset: NEC D720201 CD: http://m5.img.dxcdn.com/CDDriver/CD/sku.266850.rar