The Western Digital 320 GB Internal Hard Drive is a 7200 rpm drive, which offers 320 GB of storage space for your music, videos and games. Thanks to its 3.5-inch form factor, this WD internal HDD fits perfectly into your desktop computer. You can access large or multiple files in a jiffy, as this WD internal HDD comes with a 7200 rpm spindle speed. The 300 Mbps SATA interface in this 7200 rpm drive allows for fast data transfer, and the 8 MB cache lets you search and retrieve the stored content within seconds. You can even enjoy enhanced gaming and multimedia content on the Western Digital drive.