The G-DRIVE mini combines portability, speed and durability to create one of the best external storage option for those on-the-go. It's slim size can be taken anywhere and the all-aluminum body with integrated heat sink keeps the 1TB drive inside cool, quiet and protected. And with Dual FireWire 800 and USB 3.0 ports, you can copy data with blazing fast speeds! Mac users will be delighted to know that the G-DRIVE mini supports Time Machine and comes preformatted HFS+ with Journaling right out of the box! Don't worry Windows users, with a simple initialization you too can enjoy the G-DRIVE mini.1TB of Storage Space. Bus Powered. USB 3.0 & 2x FireWire 800 Ports.7200 RPM.32MB Cache. Works with Time Machine. Solid All-Aluminum Enclosure with Integrated Heat Sink. Compatibility - Windows Vista, 7, 8 and Mac OS X 10.6+.Unit Dimensions (LxWxH) - 4.97" x 3.18" x 0.90".Unit Weight - 1.14 lbs.3-Year Manufacturers Limited Warranty.