The WD Black drives are designed for desktop PCs and demanding users who expect high performance and a variety of upgrade options. WD Black drives deliver exceptional performance for storing your large media files such as photos, videos, and applications. They are configured for optimal performance and are ideal for gaming. WD Black drives offer ample capacity to store your growing game library. The WD Black is equipped with a dual-core processor, providing twice the processing power of a single-core processor for maximum performance. With 128 MB of cache for the 5TB and 6TB models, WD's dynamic caching technology enhances real-time performance by allocating and optimizing the cache between read and write operations. This helps reduce system vibrations caused by other components, maximizing performance and reliability.