G-Technology G-Drive mobile for Mac 500GB USB 2.0/FireWire 800 2.5" External Hard Drive (Black/Silver) G-Technology G-Drive Mobile USB 500 GB USB 2.0 2.5-inch External Hard Drive General Features: Black and aluminum design Compact size Storage capacity: 500 GB USB 2.0 and FireWire 800 interfaces 5400 RPM spindle speed 8 MB cache buffer Drive type: Hitachi SATA Unique and stylish enclosure designed with the Apple MacBook Pro user in mind