Syba 2 Port USB 3.0 PCI-e x1 Controller Card (SY-PEX20081) Supports Two USB 3.0 Ports Compatible with USB 2.0 and 3.0: Support for legacy USB 2.0 and SuperSpeed 3.0 OS Capatability: Windows 7 (32-bit/64-bit), Windows Vista (32-bit/64-bit), Windows XP