Raidsonic IB-110StUS2-B. Size: 63.5 mm (2.5 "), Hard drive interface: Serial ATA. Interface: USB 2.0 480Mbps, eSATA. Compatible operating systems: Windows 98/ME/2000/XP/Vista, OS> 9.1. Colour of product: Black. Dimensions (WxDxH): 160 x 170 x 120 mm, Weight: 350 g