With the FreeAgent Go, you can turn any PC into your PC. The instructions make it easy to transfer a copy of your web browser, favorites, passwords, IM client and contacts, e-mail client, cookies, settings and files to the drive. With that done, simply plug the FreeAgent Go into any PC with a USB 2.0 port. The FreeAgent Go will transform that PC into a copy of your home PC. While in use, all of your actions are stored on the FreeAgent Go, so when you disconnect there is no trace of your personal data on the borrowed machine. The FreeAgent Go will even synchronize its data with your most frequented PCs, so its always up to date. The FreeAgent Go is a great way to not only take your data, but your entire desktop environment with you wherever you go. 5400 RPM USB 2.0 Connectivity PC Compatibility - Windows 2000, Windows XP Home, XP Pro, and Vista Mac Compatibility - Power PC G3, G4, or G5 processor running OS X 10.3.9 (or higher) or Intel Core Duo or Core Solo processor running OS X 10.4.6 (or higher) (FreeAgent Go software and drive formatting works only with Windows, but can be reformatted for Mac using Disk Utility) 5-Year Limited Manufacturer Warranty Unit Dimensions - 0.7 (h) x 4.8 (w) x 3.9 (d) Unit Weight - 6.4 oz.