SYBA 4-Port USB 3.0 PCI-Express Card, x1, Revision 1.0; Renesas Chipset with Full & Low Profile Brackets Model SD-PEX20159 Operating Systems Supported: Windows 7 Vista XP Server 2008 Weight: 0.1 Package Contents: 1 x USB3.0 PCIe Host Controller Card 1 x Driver CD 1 x User Manual 1 x Low Profile Bracket