Toshiba Canvio Plus 640 GB USB 2.0 Portable External Hard Drive E05A064CAU2XK (Raven Black) - INCLUDES FREE CARRYING CASE! Includes Free Carrying Case! Data transfer rates of up to 21.1MB/sec. read and up to 10MB/sec write Internal dampening system for shock protection Slim, Compact & Stylish Retractable design - Pocket-sized for easy transportability and no more lost caps Computer backup made simple. Canvio Portable Hard Drives are preloaded with software to make backup simple