iRiver I/OMagic GigaBank 4.0 - hard drive - 4 GB - Hi-Speed USB (IUSB4HD) I/O Magic GigaBank Micro 8 GB USB 2.0 1-inch Portable Hard Drive General Features: 1-inch Portable hard drive Silver color 8 GB capacity USB 2.0 interface (USB 1.1 backwards compatible) Up to 480 Mbps data transfer rate Swiveling USB connector Easy to use and install Store and transfer data, music, images and videos or backup your computer