Scythe Kama Connect 3. AC input voltage: 100 - 240 V, Output voltage: 12 V. Weight: 62 g. Supported hard disk drive interfaces: Serial ATA, Supported hard disk drive sizes: 63.5, 88.9 mm (2.5, 3.5 "). Cables included: USB. Interface: USB, Compatible operating systems: Windows 2000/XP/Vista/7