Revoltec RS076. Size: 88.9 mm (3.5 "), Hard drive interface: Serial ATA. Interface: USB 2.0, Cables included: USB. Compatible operating systems: - Win 2000/XP/7/Vista - Mac OS 9.x /10.x. Colour of product: Black. Dimensions (WxDxH): 107 x 207 x 36 mm, Weight: 0.58 kg, Width: 107 mm