Icy Dock 3.5" External Enclosure. Size: 88.9 mm (3.5 "), Hard drive interface: Serial ATA II. Interface: eSATA + USB2.0. Compatible operating systems: Windows 98/SE/ME/2000/XP/VISTA; Mac OS 9.0. Colour of product: Black. Dimensions (WxDxH): 32 x 134 x 190 mm