Spire MiniPod III IDE. Size: 63.5 mm (2.5 "), Hard drive interface: IDE/ATA. Interface: USB 2.0. Compatible operating systems: Win 98/ME/2000/XP/Vista, Mac OS 8.6/OSX. Colour of product: Silver. Dimensions (WxDxH): 123.2 x 75.7 x 13.1 mm, Weight: 61 g