The WD Black hard drives are designed for desktop PCs and demanding users who expect high performance and a variety of upgrade options. WD Black hard 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 hard drives offer large capacity to store your growing game library. The WD Black features a dual-core processor that provides 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 mapping and optimizing the cache between read and write operations. This helps reduce system vibrations caused by other components, thereby maximizing performance and reliability.