The WD4002FYYZ is a premium model from Western Digital's Gold series, offering a 4TB HDD capacity designed for enterprise-level usage. This 3.5" SATA drive boasts a 6Gb/s interface, a substantial 128MB cache, and is crafted for optimal 512n sector performance. Engineered specifically to meet the demanding environments of enterprise, data center, and high-end surveillance systems, it provides high reliability, capacity, and performance. The Gold series drives feature technology that supports high workloads up to 550TB per year, vibration protection, and enhanced error correction capabilities for improved data integrity. With its durability and robust performance, the WD4002FYYZ is ideally suited for servers, storage arrays, and high-availability systems.