G-Technology G-DRIVE mobile USB 1TB 5400RPM Portable External Hard Drive w/ USB 2.0 Interface 0G02221 (silver). Portable USB Drive for Apple MacBook G-DRIVE mobile USB hard drives are the perfect compliment to your new Apple MacBook. Weighing in at less than 9 oz., G-DRIVE mobile USB is the ultra-portable and stylish way to travel with up to 1TB of storage space for your important documents, MP3s, digital video and digital photo files. G-DRIVE mobile USB is bus powered, eliminating the need to carry an external AC power supply. Portability was never so easy! Easy to Setup -Time Machine ready! G-DRIVE mobile USB is formatted at the factory HFS+ with Journaling and is Time Machine ready right out of the box! A simple initialization is all it takes to prepare G-DRIVE mobile USB for use with Windows systems! The Best Warranty & Support in the Business G-Tech's 3-Year WarrantyG-DRIVE mobile USB is backed by a standard 3-year factory warranty.