The Western Digital Caviar Green 3.5" 2TB SATA Desktop Hard Drive (WD20EARS) is a reliable and high-capacity internal hard drive designed for desktop use. With features like IntelliPower Technology, PMR, StableTrac Technology, and GreenPower Technology, this drive offers efficient storage and performance. It has a storage capacity of 2TB, a cache size of 64MB, and a rotation speed of 5400RPM. This product is part of the Caviar Green product line and is designed for long-term data storage with energy-saving technology. Ideal for those in need of a large storage capacity and consistent performance in their desktop computer system.