AC Adapter: No Material: Aluminum Internal Interface: SATA I/II Fan: No Specifications: HDD Size: 2.5" (Fitting for 9.5mm & 12.5mm) HDD Capacity: Support up to 1TB Operation System support: Windows 2000 /XP/Vista/7, Linux 2.4.1.0 or above and Mac OS 8.6 or higher Maximum Capacity (per Bay): Up to 1TB Features: Fully compliant with USB 2.0 and backward compliant with USB1.1 Super slim and easy portability Plug & play Hot-swappable LED (Power/Data Access) OTB function Package Contents: 2.5" External Enclosure USB2.0 Cable Driver Disk Screw Driver Screws Carry Bag User Manual