The Seagate STHN2000400 Backup Plus Slim USB 3.0 2TB External Hard Drive in Black is a portable external HDD designed for easy data backup and storage. With a sleek 2.5-inch form factor and USB 3.0 interface, this drive offers fast data transfer speeds and a convenient way to expand your computer's storage capacity. The USB-powered feature allows for easy connectivity without the need for additional cables, making it a versatile and practical storage solution for users looking to securely store and access their data. Used in excellent working condition.