The Western Digital WD20EZRZ-00Z5HB0 is a 3TB internal desktop drive with a storage capacity of 3TB and a read speed of 180MB/s. It is compatible with laptops and PCs, features a SATA III interface, and has a rotation speed of 5400 RPM. The drive is designed for high-performance storage and is part of the Western Digital Blue series, known for its reliability and storage capacity in a 3.5-inch form factor. With a cache size of 64MB, this HDD is ideal for storing large amounts of data for personal or professional use.