The Western Digital WD Green 3TB 3.5" SATA HDD (model WD30EZRX) is a reliable internal desktop drive designed for PC compatibility. With a rotation speed of 5400 RPM and a cache size of 64MB, this HDD offers a storage capacity of 3TB, making it ideal for storing large amounts of data and files. The drive features a low noise level, ensuring a quiet computing experience, and comes in a sleek silver, black, or green color. The WD Green product line from Western Digital guarantees high performance and durability, making it a solid choice for expanding storage capacity on your desktop computer.