Genuine Dell 2HH3F Dual 2x USB 3.0 Super Speed Upgrade PCI-Express x1 PCI-E Windows Vista, Windows 7, Windows 8 Compatible High Profile Full Height Controller Desktop PC Add-On Plug-In Card Not Included: Documentation, Cables Included: 1x Dell 2HH3F Dual USB 3.0 Full Height PCI-E Card Features: 2 x USB 3.0 | Device Type: Storage Controller Plug-in Card | Compatible Operating Systems Include: Windows 8, Windows 7, Windows Vista, and Linux | Data Link Protocol: SuperSpeed USB 3.0 | Form Factor: Full Height Interface (Bus) Type: PCI Express x1 Compatible Part Numbers: 2HH3F