WD Red Pro 22TB NAS Hard Drive 3.5" (WD221KFGX) – 7200 RPM CMR Enterprise HDD with OptiNAND™ for Commercial & RAID NAS Systems

The WD Red Pro 22TB NAS Hard Drive (WD221KFGX) is an enterprise-class 3.5-inch HDD engineered to deliver massive capacity, exceptional performance, and rock-solid reliability in demanding commercial and enterprise NAS environments. Featuring Western Digital's proprietary OptiNAND™ technology, this drive combines 7200 RPM disk speed, CMR recording, and advanced vibration and shock protection to power the most intensive 24/7 multi-user workloads.

Optimized with NASware™ technology and built for RAID-configured NAS systems with unlimited bays, the WD Red Pro 22TB is the go-to storage solution for creative professionals, medium-to-large businesses, and enterprise-grade deployments where downtime is not an option.

Key Features and Benefits

• Optimized for NAS with NASware™: Exclusive Western Digital technology fine-tunes drive parameters to match NAS workloads for higher performance and reliability
• OptiNAND™ Technology: Integrated iNAND embedded flash performs key housekeeping functions, freeing up capacity and boosting overall drive performance
• Built for 24/7 Continuous Operation: Designed to handle the rigorous demands of high-intensity, always-on multi-user NAS environments
• Tested NAS Compatibility: Extensively validated with leading NAS vendors to ensure compatibility with most enclosures
• Rotation Vibration (RV) Sensors: Anticipate and proactively counteract vibration disturbances, maintaining performance in multi-bay systems
• Multi-Axis Shock Protection: Detects subtle shock events and compensates with dynamic fly height technology to safeguard data
• Enterprise-Grade Endurance: Rated for 550 TB/year workloads with up to 2.5 million hours MTBF
• Unlimited Bay Scalability: Engineered for RAID-optimized NAS systems with an unlimited number of bays
• 5-Year Limited Warranty: Backed by Western Digital's world-class support for hassle-free data storage

Why Choose WD Red Pro Over a Desktop HDD?

• NAS-Specific Compatibility: Purpose-built and tested for NAS workloads with NASware™, unlike generic desktop drives
• Always-On Reliability: Engineered to perform under the tough conditions of high-intensity 24/7 multi-user NAS environments
• RAID-Ready Design: Built with RAID error recovery control to reduce failures in multi-bay systems
• Vibration & Noise Protection: Integrated RV sensors handle the demands of multi-drive enclosures that desktop drives can't match

Ideal Use Cases

• Creative professionals managing massive media libraries and 8K video projects
• Medium to large businesses with shared collaborative storage needs
• Commercial and enterprise NAS deployments
• RAID-optimized systems with unlimited bays
• High-intensity 24/7 multi-user data environments
• Backup, surveillance archive, and long-term data retention

Technical Specifications

The WD Red Pro 22TB (WD221KFGX) combines massive enterprise capacity, OptiNAND™ technology, NASware™ optimization, and advanced vibration and shock protection into a single dependable NAS drive. Backed by a 5-year warranty and rated for 550 TB/year workloads, it's the storage foundation growing businesses and creative professionals can trust for years to come.