SIIG SC-SA0412-S1 Cool Dual SATA to USB 2.0 Docking Station: * Compatibility: Operating Systems; Windows 2000/XP (32--/64-bit)/Server 2003 and 2008 (32-/64-bit)/ Vista (32-/64-bit) and Mac OS X v10.4.8 or later * Interfaces/Ports: eSATA External, USB 2.0 External, Serial ATA/300 InternalBays: 3.5-inch- 1/3H Hot-pluggable * Silent cooling fan extends hard drive life by lowering its operating temperatures * Input Voltage: 5V DC to 12V DC Power Adapter