The Western Digital WD Red Pro 22TB NAS HDD is engineered for high-capacity, high-performance storage solutions tailored to medium and large NAS environments supporting up to 24 bays. Featuring a 7200 RPM spindle speed and SATA 6 Gb/s interface, it delivers fast and reliable data access for multi-user 24x7 applications such as file sharing, backups, multimedia repositories, and private cloud storage. The drive incorporates Western Digital’s OptiNAND technology, integrating embedded flash to enhance performance and usable capacity, along with NASware 3.0 firmware to optimize drive operation specifically for NAS workloads. Advanced multi-axis shock sensors and rotation vibration sensors improve reliability and protect data integrity in multi-drive RAID arrays. With 512 MB cache and conventional magnetic recording (CMR) technology, this drive balances speed and data consistency, ideal for RAID environments. Backed by a 5-year limited warranty, WD Red Pro 22TB offers durable, enterprise-class performance for professional NAS setups.