Western Digital WD Red Pro (WD221KFGX) 22TB 7200RPM 512MB 3.5" SATA Hard Drive

If your business data is growing faster than you can keep up with, you need a storage drive that never quits and can hold massive amounts of information without slowing you down. The Western Digital WD Red Pro (WD221KFGX) 22TB 7200RPM 512MB 3.5" SATA Hard Drive is a purpose-built NAS hard drive designed for 24-bay systems, delivering reliable, high-speed access to petabytes of files, backups and archives around the clock.

Western Digital WD Red Pro (WD221KFGX) 22TB 7200RPM 512MB 3.5" SATA Hard Drive - the answer to demanding NAS workloads

Businesses that run 24 × 7 NAS or RAID arrays often face bottlenecks, data loss risk and frequent rebuild times when a drive fails. These problems can cripple productivity and increase IT costs. The Western Digital WD Red Pro (WD221KFGX) 22TB 7200RPM 512MB 3.5" SATA Hard Drive solves this by combining enterprise-grade reliability with technology that smooths out vibration, shock and error recovery. Its NASware 3.0 firmware ensures seamless integration with most NAS platforms, while the multi-axis shock sensor and 3D Active Balance Plus keep the drive stable even in a 24-bay enclosure. The result is a drive that maintains performance during heavy workloads, rebuilds, and long-term archiving, giving you peace of mind and uninterrupted access to critical data.

Usages of Western Digital WD Red Pro (WD221KFGX) 22TB 7200RPM 512MB 3.5" SATA Hard Drive

The drive fits a range of professional scenarios:

• Primary storage for 24-bay NAS devices in medium-to-large businesses.
• High-capacity backup target for daily or weekly server snapshots.
• Archive repository for video production, surveillance footage and large media libraries.
• RAID-5/6 arrays where fast rebuilds and error recovery are essential.
• ZFS or other advanced file-system environments that demand consistent performance.

Key Features of Western Digital WD Red Pro (WD221KFGX) 22TB 7200RPM 512MB 3.5" SATA Hard Drive

• Capacity: 22 TB. Massive storage for growing business data sets.
• Spindle Speed: 7200 RPM. Faster data access compared with slower drives.
• Buffer Size: 512 MB. Large cache reduces latency during intensive read/write cycles.
• Interface: SATA 6 Gb/s. High-speed connection for quick transfers.
• MTBF: 1,000,000 hours. Exceptional mean time between failures for continuous operation.
• Shock Tolerance (operating): 40 g @ 2 ms. Protects data from vibrations in busy NAS bays.
• NASware 3.0: Advanced firmware that improves compatibility, reliability and upgradeability across NAS platforms.
• 3D Active Balance Plus: Dual-plane balance control minimises vibration and noise in multi-drive systems.
• Error Recovery Control: Tailored for RAID, it limits recovery time to keep the array stable.
• Power Consumption: 6.8 W (read/write) / 3.4 W (idle). Efficient energy use lowers operating costs.

Benefits of Western Digital WD Red Pro (WD221KFGX) 22TB 7200RPM 512MB 3.5" SATA Hard Drive

You gain uninterrupted access to critical files because the drive is engineered for 24 × 7 operation and includes a million-hour MTBF rating. The large 22 TB capacity means you can consolidate multiple backups and archives onto a single, reliable device, freeing up rack space and simplifying management. With NASware 3.0 and 3D Active Balance Plus, the drive stays quiet and stable even in a fully populated 24-bay enclosure, reducing the risk of downtime caused by vibration. Error Recovery Control keeps RAID rebuilds fast and prevents a single drive issue from bringing down the whole array. Finally, the five-year limited warranty provides confidence that your investment is protected for the long term.

Specifications