Raidsonic IB-318STUS2-B. Size: 88.9 mm (3.5 "), Hard drive interface: Serial ATA. Interface: USB 2.0, eSATA. Dimensions (WxDxH): 30 x 130 x 220 mm, Weight: 440 g. Power requirements: 100-240V, 50-60Hz. Material: Aluminium