The Western Digital 1TB My Passport Hard Drive lets you store massive multimedia files that are occupying the memory space in your system. It comes with a USB 3.0 port that offers plug-and-play operation for Windows systems. The drive needs reformatting for using it with Mac OS platform devices. The USB 3.0 port of the drive provides backward compatibility to devices having USB 2.0 connectivity. This external hard drive protects your data with 256-bit AES hardware encryption via the WD Security software. The hard drives has a WD Backup software provided with it, which can be used to take scheduled backups at particular time intervals. This external hard drive requires only to be plugged into your computer system thanks to its USB- bus power operation.