WD Red Pro 22TB | WD221KFGX NAS HDD – Powerful Performance, 7200 RPM, 512MB Cache, Helium-Filled

The Western Digital WD Red Pro 22TB | WD221KFGX is a powerful and reliable 22TB NAS hard drive designed specifically for RAID-optimised, multi-bay NAS systems. This WD Red Pro 22TB | WD221KFGX model is engineered to deliver enterprise-class performance, scalability, and durability to meet the demanding needs of medium- to large-sized business environments and creative professionals. Featuring helium-filled technology, the WD221KFGX reduces friction and power consumption while providing higher storage density.

This WD Red Pro 22TB | WD221KFGX hard drive includes Western Digital’s exclusive OptiNAND technology, leveraging integrated iNAND embedded flash to improve performance and reliability by handling crucial housekeeping functions efficiently. The drive further enhances stability with rotational vibration (RV) sensors that counteract vibration in crowded NAS enclosures, maintaining consistent performance. WD Red Pro 22TB | WD221KFGX supports a workload rate of up to 550 terabytes per year and boasts a mean time between failure (MTBF) of 2.5 million hours, ensuring exceptional reliability for 24/7 multi-user NAS applications.

Key Technical Features

• Formatted Capacity: 22TB

• Drive Technology: Helium-filled to enhance performance and energy efficiency

• Interface: SATA 6 Gb/s for high-speed data transfer

• RPM: 7200 RPM for faster access and data throughput

• Cache Memory: 512MB for improved overall drive speed

• OptiNAND Technology: Integrated embedded flash for better performance and capacity

• Rotational Vibration (RV) Sensors: Reduces performance degradation from vibration

• Workload Rate: Rated for 550 TB/year

• MTBF: 2.5 million hours for superior reliability

• Advanced Format: 4K sector size for improved data integrity

• Noise Levels: 20 dBA idle acoustic rating for quieter operation

• Power Management: Average power consumption approximately 6.8W during active use

• Dimensions: 3.5-inch form factor (26.1 mm height, 147 mm length, 101.6 mm width)

• Warranty: 5-year limited warranty with Western Digital world-class support

• RoHS Compliant: Yes, adhering to environmental standards