Full Details from Amazon.com : http://www.amazon.com/gp/product/B005HVPYNU?tag=onigi-20
StarTech.com 4 Port SuperSpeed USB 3.0 PCI Express Card with SATA Power PEXUSB3S4
Add 4 USB 30 ports to your desktop computer through a PCI Express expansion slot
Compatible with Dell OptiPlex 3010 HP Pro 6300
4 Port SuperSpeed USB 30 PCI Express Card with UASP 4 Port USB 30 Controller Card
4 Port 3 External1 Internal USB 30 Card USB 3 PCIe Card PCIe USB 30 Card
SATA Powered USB 30 PCI Express Card PCI Express USB 30 Expansion Card w UASP
Desktop PCIe USB 3 Card Add USB 30 Ports to a Desktop
