The document describes the components and operation of the Seagate Backup Plus 500 GB External Hard Drive. It has three major components: a rectangular main body made of steel and plastic, a polished aluminum hard disk that stores data, and a connector cable to connect the hard drive to a computer. To operate it, a user connects the hard drive to their computer via the cable, drags files from their computer to the hard drive for storage, and then ejects the hard drive after transferring files.