The Western Digital My Passport 4TB in Black is a portable external HDD designed for use with PCs. With a storage capacity of 4TB, this drive offers ample space for storing a large amount of data. The USB 3.0 interface ensures faster data transfer rates, while the 5400 RPM rotation speed allows for efficient data access. This product is covered by a 3-year manufacturer warranty, providing reliability and peace of mind for the user. The sleek black color and compact 2.5-inch form factor make it a convenient and stylish storage solution.