Pockey 525 DataStor External USB 2.0 20 GB Hard Drive Pocket-sized 20 GB portable hard drive Tiny footprint offers maximum portability Connects via USB 2.0 (backward compatible with USB 1.1) Compatible with Windows, Mac, and Linux operating systems Plug-and-Play--drivers not required for Windows 2000/Me/XP and Macintosh OS 10.1