The Maxtor DiamondMax 21 6A200V0 200GB 3.5" PATA hard disk drive is a high-performance internal desktop drive designed for PCs. With a rotation speed of 7200 RPM and a cache size of 8 MB, this hard drive offers fast transfer rates and ample storage capacity of 200 GB. The sleek silver design and compact form factor make it a reliable choice for expanding storage on your computer system. The DiamondMax 21 product line from Maxtor ensures quality and performance in hard drive technology.