The Western Digital 80GB 3.5" SATA Desktop Hard Drive HDD WD WD800JD-00LSA0 is a reliable and high-capacity internal desktop drive designed for use with PCs. With a storage capacity of 80GB, this HDD utilizes SATA I interface and a rotation speed of 7200 RPM for efficient data transfer and storage. The 8MB cache size ensures faster access to frequently used data, making it a practical choice for storing a large amount of files and programs on your desktop computer.