Enermax EB307C-B Jazz. Size: 88.9 mm (3.5 "), Hard drive interface: IDE/ATA. Interface: USB 2.0. Compatible operating systems: Windows 98SE/ME /2000 /XP/Vista Mac OS 8.6 +. Colour of product: Black. Dimensions (WxDxH): 124 x 220 x 43 mm