This sleek little portable drive, features a FireWire 800 interface for ultra-fast performance, is formatted for Macintosh, includes a clever capacity gauge and comes with a soft drawstring bag. Available in 500 GB, 400 GB, and 320 GB. Equipped with FireWire 800/400 and USB 2.0 interfaces, and formatted for Macintosh, this high speed portable hard drive is perfect for Mac users on the go. Use it to pack up your office files and take them home, carry thousands of songs or pictures and back up your Macintosh laptop using Apple Time Machine.