The Western Digital 1TB My Passport Ultra External Hard Drive uses the USB 3.0 interface to offer data transfer rate of 5 Gbps. It is preformatted for Windows systems while the drive requires reformatting to be used with Mac OS systems. The external hard drive has various user-friendly software provided with it. One of them is the WD Discovery that allows you import photos, videos, and documents from your social media account to the drive. The WD Security software protects your stored data from unauthorized access by letting you assign a 256-bit AES hardware encrypted password. You can back up valuable data automatically in the drive at specified intervals with the WD Backup software. The bus-powered operation of the drive ensures a plug-and-play operation.