This internal desktop hard drive from Western Digital offers 40GB of storage capacity and a rotation speed of 7200 RPM, making it a reliable choice for those in need of a dependable storage solution. The Caviar SE product line is known for its quality and durability, and this model, the WD400BD-75MRA3, is no exception.

With a form factor of 3.5 inches and a black color, this hard drive is compatible with a range of computers and can easily fit into your existing setup. The cache size of 8MB ensures quick access to frequently used files, and the storage format is HDD only. Please note that this item is untested.