The Western Digital My Book 1TB USB 3.0 is an external hard drive with a storage capacity of 1TB, making it suitable for storing a large amount of data. It features a stylish black color and a compact 3.5-inch form factor, perfect for use with both PC and Mac computers. The drive is equipped with a USB 3.0 interface for fast data transfer speeds, and it includes a Blu-ray BD-R writable format for added functionality. With its reliable brand reputation and USB port feature, this external drive from Western Digital is a practical and efficient storage solution for various computing needs.