The WUS4BB038D7P3E1 WD Ultrastar DC SN640 3.84TB SSD is a high-performance internal solid-state drive designed for use with PCs. With a storage capacity of 3.84TB, this SSD features a U. 2 interface and is part of the Ultrastar product line from WD. The sleek black design and 2.5-inch form factor make it a stylish and compact addition to any computer system. Ideal for users looking for fast and reliable storage solutions, the WD Ultrastar DC SN640 combines speed, capacity, and durability in one versatile package.