Microsoft Windows Server 2008 R2, Microsoft Windows Vista (32/64 bits), Linux Kernel 2.6.31 or later, Microsoft Windows 7 (32/64 bits), Microsoft Windows XP (32/64 bits), Microsoft Windows Server 2003 (32/64-bits), Windows 8 (32/64 bits), Windows 8.1 (32/64 bits)
4 Port USB 3.0 PCIe Card w/ 2 Dedicated Channels - 5Gbps - UASP (PEXUSB3S42V).
Improved Performance with UASP In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.2 Gen 1 at peak performance. At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources. Test results were obtained using an Intel Ivy Bridge system, StarTech.com add-on USB 3.2 Gen 1 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.