Western Digital

WD WD221KFGX 22TB 7200 RPM SATA 3.5" NAS HDD

Name: WD WD221KFGX 22TB 7200 RPM SATA 3.5" NAS HDD
Brand: Western Digital
SKU: WD221KFGX
Price: 1328 USD
Availability: InStock

MPN: WD221KFGX·By: Western Digital

Part #:WD221KFGXNewIn stock

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$1,328.00$60.36 per TB

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WD WD221KFGX 22TB 7200 RPM SATA 3.5" NAS HDD-

$1,328.00

$1,328.00$60.36 per TB

Qty

WD WD221KFGX 22TB 7200 RPM SATA 3.5" NAS HDD-

$1,328.00

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Product overview

The Western Digital WD Red Pro WD221KFGX is a 22TB enterprise-grade NAS internal hard drive designed for high-intensity workloads in 24x7 multi-user environments. Featuring a 3.5-inch form factor, SATA 6Gb/s interface, and 7200 RPM rotational speed, it delivers up to 265 MB/s internal transfer rates with a 512MB cache. NASware 3.0 firmware optimizes performance for NAS systems, while OptiNAND technology enhances capacity and reliability. It supports a 550TB/year workload rate and offers up to 2.5 million hours MTBF, ideal for RAID-optimized NAS with unlimited bays. Physical specs include dimensions of 5.79 x 4 x 1.03 inches and weight of 1.48 pounds. Operating temperature is typical 40°C for rated workload, with power input at 12VDC ±5%. This drive suits medium to large businesses for data storage, sharing, and collaboration in commercial NAS setups, ensuring scalability and dependability.

22TB CMR capacity with OptiNAND for max storage efficiency
7200 RPM, 512MB cache, 265 MB/s transfers for NAS speed
550TB/year workload, 2.5M hours MTBF for 24x7 reliability
SATA 6Gb/s interface, NASware 3.0 for RAID optimization
3.5-inch form, 1.48 lbs, fits unlimited bay NAS systems
6.8W power, 40°C operation for efficient enterprise use

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Featuring

Manufacturer part #	WD221KFGX
Brand	Western Digital
Condition	New
Cache	512 MB
Model	WD221KFGX
Technology	NASware 3.0 firmware for NAS optimization
Product Line	WD Red Pro
Product Type	NAS Internal Hard Drive
Workload Rate	550TB/year
Rotational Speed	7200 RPM

Power Consumption

Voltage Input	12VDC ±5% (A, peak)

Physical Characteristics

Form Factor	3.5-inch

Reliability

MTBF	Up to 2.5 million hours

Interface/Ports

Interface Type	SATA 6 Gb/s; Serial ATA-600

Media & Performance

Media Type	Mechanical Hard Disk Drive

Weight & Dimensions

Weight	1.48 pounds
Dimensions	5.79 x 4 x 1.03 inches

Environmental Condition

Operating Temperature	Typical 40C for rated workload

Compatible systems

Compatible with major NAS systems up to 24 bays; broad NAS vendor compatibility tested

Various NAS
Model: Up to 24 bays
Form factor: 3.5-inch
Optimized for RAID-optimized NAS systems

Best for

Enterprise NAS
Optimized for 24x7 multi-bay RAID NAS with NASware 3.0 firmware and 550TB/year workload, supporting unlimited bays for high-intensity data sharing.
RAID Storage
Delivers 7200 RPM performance and 512MB cache in CMR technology, ensuring reliability with up to 2.5M hours MTBF in demanding RAID environments.
Data Archiving
22TB capacity with OptiNAND for metadata handling provides scalable storage for large datasets in commercial systems operating at 40°C.
Business Collaboration
SATA 6Gb/s interface and 265 MB/s transfer rates enable efficient multi-user access in medium to large business NAS setups.

Frequently asked questions

What is the capacity and form factor of WD Red Pro WD221KFGX?

The WD Red Pro WD221KFGX offers 22TB formatted capacity in a 3.5-inch form factor, ideal for enterprise NAS. It uses CMR technology with 10 platters of 2.2TB each, dimensions 5.79 x 4 x 1.03 inches, and weighs 1.48 pounds for standard bay compatibility.

What performance specs does this drive provide?

It spins at 7200 RPM with 512MB cache and up to 265 MB/s internal transfer rates via SATA 6Gb/s. NASware 3.0 firmware optimizes for multi-user NAS, supporting native command queuing and Advanced Format for sustained high workloads.

What is the workload rating and MTBF?

Rated for 550TB/year workloads with up to 2.5 million hours MTBF, suitable for 24x7 enterprise NAS. Features include 600,000 load/unload cycles and <10 in 10^14 non-recoverable errors, enhanced by multi-axis shock sensors.

Is it optimized for NAS and RAID environments?

Yes, designed for RAID-optimized NAS with unlimited bays using NASware 3.0 and OptiNAND. It handles high-intensity multi-user scenarios in commercial systems, with 3D Active Balance for vibration protection in dense arrays.

What are the power and temperature specs?

Power consumption is 6.8W read/write, 3.4W idle, with 12VDC ±5% input at 1.7A peak. Operating temperature is typical 40°C for rated workload, ensuring reliability in standard enterprise cooling setups.

What interface and technology features are included?

SATA 6Gb/s interface with RoHS compliance, OptiNAND controller, and 64-layer BICS3 flash for metadata. Includes dynamic fly height technology and multi-axis shock sensors for robust performance in vibration-prone NAS environments.

Details

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