The WD My Passport is the best overall external HDD drive we've tested so far thanks to its cheap price, ability to automatically backup data, and ability to work without external power.

Whether you copy your entire computer, or just the most important files, it's essential to have your data backed up.

Available in 500 GB, 1 TB and new 2 TB [1] capacities, My Passport Ultra portable hard drives have built-in WD SmartWare TM Pro backup software with Dropbox integration, hardware encryption and ...