StarTech 2 Port PCI Express eSATA Controller Adapter Card Model PEXESATA2 Type: PCI Express to SATA Card External Ports: 2 x SATA II Data Transfer Rate: 3.0 Gbps Operating Systems Supported: Windows NT4.0/2000/2003 Server/XP/Vista Weight: 0.28 Parts: 1 year limited Labor: 1 year limited