Host Adapters
U3X2-PCIE4XE302
Dual Channel 4-port (2-port x 2) USB 3.0 to PCI Express x4 Gen 2 Host Card
Firmware, Drivers, Utility
Version: 3.0.23.0  
Content: USB 3.0 Host Controller Driver Kit (x86 and x64) For Windows XP, VISTA, 7 and Server 2008 Download

* Specifications subject to change without prior notice