The Western Digital WD My Passport 2TB Portable Storage in black is a compact and portable external HDD designed for use with PC and Mac computers. With a storage capacity of 2TB, this USB 3.0 drive offers fast data transfer speeds. The drive is powered by USB and features a sleek 2.5-inch form factor, making it easy to use on the go. The WD My Passport is backed by a 3-year manufacturer warranty and is compatible with HDD drive types. With a cache size of 8MB and a rotation speed of 5400 RPM, this product is a reliable choice for those in need of additional storage capacity.