WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 32MB Cache 3.5 Inch - WD5000AZLX Capacity: 500GB Rotational Speed: 7200 RPM Class Get Storage Capacity Up to 6 TB Mainstream 2 TB to 4 TB Pair a larger capacity drive with an SSD to give your desktop a performance and storage boost.