If you want to backup a large amount of data, the Seagate One Touch SSD 500GB, Black external drive is just what the doctor ordered, giving you a whopping 1000 GB of storage. This capacity is enough to store countless files and videos in great quality. 2.5" drives are suitable mainly for people who travel a lot and don't have much space to spare. SSD means Solid State Drive, that is a drive without any moving parts. Unlike your standard hard disks, it is noticeably faster and can withstand various shocks and bumps. This Seagate external storage uses USB 3,2 Gen 1 (USB 3,0) interface.