S23 - Used - Wiped Clean - The Western Digital Caviar SE 400GB Internal HDD (WD4000KD-00NAB0) is a reliable and high-performance storage solution for computers and servers. With a storage capacity of 400GB and a rotation speed of 7200 RPM, this 3.5-inch drive is perfect for storing large amounts of data and files efficiently. The Caviar Blue product line from Western Digital ensures consistent quality and performance, making it a dependable choice for those in need of a dependable storage solution.