The Seagate Portable HDD 2TB STGX2000400 is a black portable external HDD designed to be compatible with laptops, PCs, and iOS devices. With a storage capacity of 2TB and a USB 3.0 interface, this HDD offers fast data transfer rates. It is powered by USB and comes with a 1-year manufacturer warranty, making it a reliable option for additional storage needs. The compact size of 4.606 x 3.149 x 0.582 inches makes it easy to carry around for on-the-go storage, while the brand reputation of Seagate ensures quality and performance.