Western Digital WD221KFGX | 22TB | SATA 6Gb/s | 7200RPM | 3.5" | NAS Hard Drive Western Digital WD221KFGX | 22TB | SATA 6Gb/s | 7200RPM | 3.5" | NAS Hard Drive
Western Digital WD221KFGX | 22TB | SATA 6Gb/s | 7200RPM | 3.5" | NAS Hard Drive

Western Digital

Western Digital WD221KFGX | 22TB | SATA 6Gb/s | 7200RPM | 3.5" | NAS Hard Drive

$1,054.95

Brand New, Factory Sealed | In Stock | Bulk Orders Available

The WD221KFGX is a 22TB WD Red Pro NAS hard drive featuring SATA 6Gb/s interface, 7200RPM spindle speed, and 512MB cache in a helium-filled 3.5-inch form factor. Built for high-intensity 24/7 multi-user NAS environments, it is ideal for RAID-optimized multi-bay arrays, archiving and file sharing, and ZFS storage pools in medium to large businesses. Compatible with Synology, QNAP, and Asustor NAS enclosures as well as TrueNAS and unRAID builds supporting up to 24 bays. CMR recording with OptiNAND and NASware 3.0 firmware delivers consistent write performance, a 300TB/yr workload rating, and up to 2.5 million hours MTBF for dependable around-the-clock operation. This item carries a full manufacturer warranty.

All products are sold as new in original retail or OEM packaging unless otherwise specified. Same-business-day shipping on orders placed before 2 PM PT. Bulk inquiries welcome.
Specifications
  • Manufacturer: Western Digital
  • Model: WD Red Pro WD221KFGX
  • Capacity: 22TB
  • Interface: SATA 6Gb/s
  • RPM: 7200
  • Cache: 512MB
  • Form Factor: 3.5-inch
  • Recording: CMR
  • Drive Technology: Helium (HelioSeal) with OptiNAND
  • Sustained Transfer: up to 265MB/s
  • Workload Rate: 300TB/year
  • MTBF: up to 2.5 million hours
  • Power (Read/Write): 6.8W
  • Warranty: 5-year limited manufacturer warranty
Product Features
  • OptiNAND flash-enhanced architecture for improved reliability and capacity
  • NASware 3.0 firmware for seamless NAS integration and data protection
  • Helium-filled HelioSeal design lowers power draw and running temperature
  • CMR recording for consistent sustained write performance in RAID rebuilds
  • Multi-axis RV sensors and 3D Active Balance Plus counter enclosure vibration
  • Rated for high-intensity 24/7 multi-user NAS workloads
Compatibility
  • Synology DiskStation / RackStation
  • QNAP multi-bay NAS
  • Asustor and TerraMaster NAS enclosures
  • TrueNAS / unRAID / ZFS builds
  • SATA 6Gb/s RAID and HBA controllers
Shipping & Returns
  • Free Shipping: We currently offer free Economy Shipping within the continental U.S. with no minimum order required. Expedited shipping is available at standard carrier rates.
  • Same-Day Shipping: Order placed before 2PM PST will ship the same day. Orders received after this time will ship the following business day.
  • Hassle-Free Returns: If you're not completely satisfied with your purchase, simply return it within 10 days for a hassle-free refund or exchange.

22TB SATA 6Gb/s 7200RPM 512MB Cache 300TB/yr Workload

WD Red Pro 22TB — CMR NAS storage with OptiNAND

The WD221KFGX is Western Digital's flagship 22TB WD Red Pro NAS drive, engineered for RAID-optimized multi-bay systems with up to 24 bays. Helium-filled CMR platters, OptiNAND flash enhancement, and NASware 3.0 firmware combine to deliver enterprise-class reliability for high-intensity 24/7 workloads.

22TB NAS Capacity

Twenty-two terabytes across ten helium-filled 2.2TB platters maximizes per-bay density in multi-drive NAS arrays.

OptiNAND + CMR

OptiNAND flash-enhanced CMR recording sustains up to 265MB/s transfer while keeping write performance consistent during RAID rebuilds.

24/7 Reliability

Rated for a 300TB/year workload and up to 2.5 million hours MTBF for dependable around-the-clock operation.

Vibration Protection

Multi-axis RV sensors and 3D Active Balance Plus counter rotational vibration in crowded 24-bay enclosures.

Full Manufacturer Warranty

Brand new, factory sealed, and backed by a full 5-year manufacturer warranty with same-business-day shipping before 2 PM PT.

Frequently Asked Questions

Frequently asked questions for SATA, including information on usage, configuration, and compatibility.

1. Are these items brand new?

Unless otherwise clearly stated in the product listing, all items sold by Anand International Inc. are brand new and factory sealed. Where applicable, listings will clearly indicate if an item is used, refurbished, or factory recertified, and will describe the condition in detail.
2. Is this drive compatible with my NAS enclosure?

This drive is compatible with most major NAS brands including Synology, QNAP, Western Digital, and Seagate NAS enclosures. We recommend verifying against your enclosure manufacturer's compatibility list for your specific model.
3. Do you offer bulk or wholesale pricing?

Yes. Contact us directly for volume pricing on orders of 5 or more units. We work with IT departments, resellers, and system integrators.
4. What warranty is included?

All items sold by Anand International Inc. are brand new and factory sealed unless otherwise stated. Most carry the manufacturer's original warranty. In cases where we source factory OEM product without a manufacturer warranty, we provide a direct 90 day warranty through Anand International Inc. covering defects in materials and workmanship.
5. How is this item shipped?

All items are shipped in anti-static packaging with appropriate cushioning to prevent damage in transit. Most orders ship within 1–2 business days.