Raidsonic IB-138SK-S-II. Size: 88.9 mm (3.5 "), Hard drive interface: Serial ATA. Colour of product: Silver. Dimensions (WxDxH): 195 x 155 x 45 mm, Weight: 800 g. Material: Aluminium. Package dimensions (WxDxH): 420 x 330 x 265 mm, Package weight: 18000 g