StarTech ECESATA254F 2 Port Flush Mount ExpressCard 54mm eSATA II Controller Adapter Card Data Rates: 3.0 Gbps Other Ports: 2 x eSATA II Interface: ExpressCard slot Temperature: 0°C to 70°C (32°F to 158°F) Dimensions: 2.13 x 2.95 x 0.2 Operating Systems Supported: Windows 2000/ XP(32/64-bit)/ Server 2003(32/64-bit)/ Vista(32/64-bit)/ Server 2008 R2/ 7(32/64-bit), Linux