Operating Systems Supported: PCI-Express x4, x8 or x16 slots
Microsoft Windows XP,7,8,8.1, Server 2012, 2008 R2, 2003, and Linux Kernel 2.6.31 or later
USB 3.0 devices preferred to get maximum speed
Specifications: Device Support: USB 3.0 Type A (backward compatible with USB 2.0 and 1.1)
Ports: 4, USB 3.0 Type A ports
Bus Technology: PCI-Express x4
Power Connector: 1 - LP4 (4 pin Molex) or SATA power connector