Icy Dock MB559U3S-1S. Size: 88.9 mm (3.5 "), Hard drive interface: eSATA, USB 3.0. Compatible operating systems: Windows 98/SE/ME/2000/XP/Vista/7, Mac OS 9.0+. Colour of product: White. Weight: 0.526 kg, Width: 142.6 mm, Depth: 191 mm. Material: Aluminium, Plastic