Store and access up to 4TB of your files using the 4TB Blue SATA III 3.5" Internal HDD Retail Kit from WD. 4TB will allow you to store movies, photos, music, documents, and much more. Compatible with computers running Windows and Mac OS, this hard drive connects to your system's 3.5" bay via the SATA III 6 Gb/s interface.
In terms of speed, this drive operates using WD's IntelliPower rotational speed. This means that rpm speed of the drive depends on the operations being performed. If the drive is performing mostly sequential reads and writes, its speed will be increased as compared to if it were performing mostly random mode operations. This 4TB drive also features a 64MB cache to help ensure uninterrupted data transfers. Included with this hard drive are mounting screws.