Enermax Jazzmate. Size: 88.9 mm (3.5 "), Hard drive interface: Serial ATA, Serial ATA II. Compatible operating systems: Windows ME/2000/XP/Vista/7 Mac OS 8.6+. Colour of product: Black. Dimensions (WxDxH): 123 x 200 x 38 mm, Weight: 240 g. Power requirements: 100 - 240 V AC