SYBA SD-PEX40049 Flex-2-port SATA III 6Gbps PCIe Card, Hard Drive Connectors can be set as External or Internal Ports by Jumpers External Connectors: 2 x eSATA Transfer Rate: Up to 6Gb/s Operating Systems Supported: Windows 7 Vista Windows XP Server 2003 Server 2008 Package Contents: PCIe Flex-2-port SATA Controller Card Driver CD User Manual