WD Red WDS400T1R0A 4 TB Solid State Drive - 2.5in Internal - SATA (SATA/600) - 2500 TB TBW - 560 MB/s Maximum Read Transfer Rate - 5 Year Warranty

Purpose-built for NAS with proven Western Digital 3D NAND to deliver maximum SATA performance to both home and business users. Reduces latency and improves responsiveness for OLTP databases, multi-user environments, photo rendering, 4K and 8K video editing, and more. Storage optimized for caching in NAS systems to rapidly access your most frequently used files. Superior endurance can handle the heavy read and write loads demanded by NAS, giving you the reliability you need in a 24/7 environment. Capacities from 500GB up to 4TB* (2.5in only) gives you the flexibility to customize your NAS to meet your most demanding storage needs. Available in 2.5in and M.2 form factors to fit the slots in modern NAS systems.