USB3.0 Express Card for PC Supports USB 3.0 specification type A connector x 4 ports Super-speed (5 Gbps)

Low-speed (1.5 Mbps) / Full-speed (12 Mbps) / High-speed (480 Mbps) / Super-speed (5 Gbps)                                          4 port USB3.0 PCI-e CardVIA chipsetSupports PEI-e version 1.1 and 2.0Supports Windows XP, Vista, and Win 7 for 32bit and 64bit driver 

USB3.0 Express Card for PC