The Western Digital Red Pro 4TB hard drive is designed for demanding NAS environments. It features a 3.5-inch form factor, 7200rpm spindle speed, and 64MB cache for efficient data transfer and reliable performance in 24/7 operation. This drive is optimized for small to medium-sized businesses and enterprise-level NAS solutions, offering enhanced power, performance, and scalability. Built with advanced technologies to ensure data integrity and longevity, it's an ideal choice for intensive workloads and mission-critical applications.