Western Digital
Western Digital WD221KFGX Red Pro 22TB NAS Hard Drive
★★★★★
Maximize Your NAS Performance with Enterprise-Class StorageThe Western Digital 22TB WD Red Pro NAS Internal Hard Drive is engineered for power users and medium-sized businesses. Designed for NAS systems with up to 24 bays, this drive delivers reliable, high-capacity storage for demanding 24x7 env...
$998.99*
View on Amazon
✓ In Stock on Amazon.com
*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.
Notice a mistake? Let Us Know
Overview
Maximize Your NAS Performance with Enterprise-Class Storage
The Western Digital 22TB WD Red Pro NAS Internal Hard Drive is engineered for power users and medium-sized businesses. Designed for NAS systems with up to 24 bays, this drive delivers reliable, high-capacity storage for demanding 24x7 environments, ensuring your data is always accessible and protected.
- Capacity: 22TB
- RPM: 7200 RPM
- Interface: SATA 6 Gb/s
- Cache: 512 MB
- Form Factor: 3.5"
- Technology: CMR
- Workload Rate: 550TB/yr
Key Features
Available in capacities ranging from 2 to 22TB(1) | (1) 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.
For RAID-optimized NAS systems with unlimited number of bays
Rated for 550TB/yr workload rate(2) | (2) Annualized Workload Rate = TB transferred x (8760 / recorded power-on hours). The maximum rated workload is specified for operating at typical temperature of 40C. Workload Rate will vary depending on your hardware and software components and configurations.
Designed to handle the demands of high-intensity 24x7 multi-user NAS environments
Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures
Specifications
Capacity Range
2TB to 22TB
Model Capacity
22TB
Intended Use
RAID-optimized NAS Systems
Workload Rate
550TB/yr (rated for 40C typical temperature)
Environment
24x7 Multi-user NAS
Bay Support
Unlimited bays
Similar Products
Other products from the same family that visitors often consider:
✓ AvailableWestern Digital WD4001FFSX Red Pro 4TB NAS Hard Drive
$444.45
View on Amazon →
✓ AvailableWestern Digital WD1002F9YZ 1TB NAS Hard Drive
$184.73
View on Amazon →
Currently UnavailableWestern Digital WD40EFAX 4TB Red NAS Hard Drive
Check on Amazon →
Currently UnavailableWestern Digital WD141KFGX Red Pro 14TB NAS Hard Drive
Check on Amazon →
Currently UnavailableWestern Digital WD121KFBX 12TB Red Pro NAS Hard Drive
Check on Amazon →Pros & Cons
👍 Pros
- Available in capacities ranging from 2TB to a massive 22TB, catering to diverse storage needs
- Optimized for RAID-configured NAS systems, providing reliable performance for multi-bay setups
- Rated for a high 550TB/yr workload rate, indicating robust endurance for continuous operation
- Designed specifically to handle the demands of high-intensity 24x7 multi-user NAS environments
- Extensively tested with a wide range of NAS system vendors to ensure broad compatibility with enclosures
- Offers a substantial 22TB capacity, providing significant storage for large datasets and media libraries
- The Red Pro series is built for consistent performance in always-on storage solutions
- Supports an unlimited number of bays in NAS systems, offering scalability for growing storage demands
👎 Cons
- The 22TB capacity might be overkill and more expensive for users with minimal storage requirements
- The 550TB/yr workload rate is specified for typical temperatures of 40C, which may vary in less-optimal environments
- Designed primarily for NAS environments, it may not be the most cost-effective or suitable for single-drive desktop use
- As an internal hard drive, it requires installation within a compatible NAS enclosure or PC
- Workload rate can vary depending on hardware, software components, and configurations, impacting actual performance
- The product description does not specify spindle speed (RPM) or cache size, which are relevant performance metrics
- Does not include any external casing or connectivity accessories, as it's an bare internal drive
Frequently Asked Questions
What is the maximum capacity available for the Western Digital Red Pro series?
The Western Digital Red Pro series is available in capacities ranging from 2TB to a maximum of 22TB.
Is this hard drive suitable for continuous 24/7 operation?
Yes, this hard drive is designed to handle the demands of high-intensity 24x7 multi-user NAS environments.
What is the rated workload capacity for this drive?
The WD221KFGX Red Pro 22TB NAS hard drive is rated for a 550TB/yr workload rate.
Is this drive compatible with different NAS enclosures?
Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.
Can this hard drive be used in a system with many drive bays?
Yes, it is designed for RAID-optimized NAS systems with an unlimited number of bays, offering scalability for large setups.
Is this a good choice for a single-drive desktop setup?
While it could technically be used, it is specifically optimized for RAID-configured NAS systems, making it potentially over-engineered or less cost-effective for single-drive desktop use.
What does "RAID-optimized" mean for a NAS hard drive?
"RAID-optimized" indicates the drive is built with features and firmware that enhance its performance, reliability, and compatibility when operating in a RAID array within a Network Attached Storage system.
Related Products
