Cavalry CABD3BRP-BK 3.5" Bulldog Series Docking Bridge with Case Protector - Black Super-Speed USB 3.0 Any SATA 3.5" or 2.5" hard drive USB 3.0 speeds up to 5 Gbit/sec. Backwards compatible with USB 2.0 Stackable Windows XP/Vista/7, Mac OS X 10.4.8 + Power Supply Included