Toshiba Canvio Plus 500 GB USB 2.0 Portable External Hard Drive E05A050CAU2XL (Liquid Blue) High speed USB controller and Dual Memory Channel for ultra fast data transfer speeds 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