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Description
Western Digital Red Pro WD221KFGX 22 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) MethodThe Western Digital Red Pro WD221KFGX 22 TB Hard Drive delivers enterprise grade reliability and capacity optimized for NAS deployments. Designed for systems with up to 24 bays, this 3. 5 inch internal SATA drive is purpose built to handle demanding workloads, large data archives, and 24x7 operation with consistency and resilience. Featuring Conventional Magnetic Recording (CMR) and a SATA 6Gb s interface, it offers steady, predictable performance in
The Western Digital Red Pro WD221KFGX 22 TB Hard Drive delivers enterprise-grade reliability and capacity optimized for NAS deployments. Designed for systems with up to 24 bays, this 3.5-inch internal SATA drive is purpose-built to handle demanding workloads, large data archives, and 24x7 operation with consistency and resilience. Featuring Conventional Magnetic Recording (CMR) and a SATA 6Gb/s interface, it offers steady, predictable performance in multi-drive RAID environments, enabling businesses to consolidate backups, media libraries, virtual machine images, and large datasets into a single, scalable storage solution. Built for NAS use, the WD221KFGX emphasizes data integrity, reduced rebuild times, and ongoing reliability—essentials for uptime, data protection, and smooth business continuity in today’s data-heavy landscape.
- Designed for NAS systems up to 24 bays, delivering dependable storage for growing data libraries, backups, media archives, and business workloads with consistent performance in RAID configurations.
- Massive 22 TB capacity enables storing millions of files and large multimedia assets in a single drive, simplifying data management and enabling long-term archiving without frequent replacements.
- 3.5-inch internal HDD with a SATA 6Gb/s (SATA/600) interface ensures fast data transfers and broad compatibility with NAS enclosures, servers, and desktop systems that support 3.5-inch drives.
- NAS-optimized firmware and design features provide reliability for 24x7 operation, improved error recovery, and reduced downtime in multi-drive arrays—crucial for business continuity and IT efficiency.
- Backed by Western Digital’s warranty and service commitments, offering long-term support, peace of mind, and protection for mission-critical storage workloads in professional environments.
Technical Details of WD221KFGX
- Capacity: 22 TB
- Form factor: 3.5-inch internal hard disk drive
- Interface: SATA 6Gb/s (SATA/600)
- Recording technology: Conventional Magnetic Recording (CMR)
- Drive type: Hard Disk Drive (HDD)
- Designed for NAS use in systems with up to 24 bays and 24x7 operation
- NAS-optimized firmware for improved reliability and data protection in RAID environments
- Warranty: 5-year limited warranty (subject to regional terms and conditions)
How to install Western Digital Red Pro WD221KFGX
- Power down your NAS or computer and unplug from the power source to prevent static discharge or damage during installation.
- Open the storage bay or drive tray, remove any existing drive if replacing, and align the WD221KFGX with the tray or slot designed for 3.5-inch drives.
- Insert the drive into the bay and secure it with screws or the tray’s locking mechanism as required by your chassis or NAS enclosure.
- Connect the SATA data cable and power connector securely to the drive and the motherboard or power supply, ensuring proper seating and cable routing to avoid obstruction or overheating.
- Power on the device, access the NAS/OS interface, and initialize or format the new drive as part of a storage pool or RAID array. Follow the system prompts to assign a name, configure redundancy, and set up SMART monitoring.
- Run a health check and SMART tests to confirm drive health, then migrate data or add the drive to an existing storage pool, validating performance and resilience across the array.
Frequently asked questions
- Q: Is the WD221KFGX suitable for NAS use? A: Yes. It is designed specifically for NAS systems with up to 24 bays and is optimized for 24x7 operation in RAID environments.
- Q: What is the capacity? A: 22 terabytes of raw storage capacity, ideal for large archives, media libraries, backups, and datasets.
- Q: What interface does it use? A: SATA 6Gb/s (SATA/600), providing broad compatibility with contemporary NAS devices and servers.
- Q: What is the recording method? A: Conventional Magnetic Recording (CMR), chosen for its reliability and performance in multi-drive RAID configurations.
- Q: What is the warranty? A: Western Digital typically offers a 5-year limited warranty on Red Pro drives; terms may vary by region and distributor policy.
- Q: Can I use this drive in a RAID array? A: Yes. It is designed for use in RAID configurations with NAS-optimized firmware and reliability features to protect data and improve rebuild times.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Euphy works good as new!
Style: 19 Pack
As soon as I opened the package everything looked the same- pre-filters, filters, main brush, and side brushes. I changed the big brush first;the only issue was the new brush body didn't have the white arrows to help aligning but that didn't affect how the brush worked. I changed filter and pre-filter, and finally the side brushes.
When I turned on my "Goophy" and tried to let her run the side brushes were a little too (Goophy's side brushes sounded a little louder). I trimmed the side brushes a little and all was well. Goophy didn't want to run herself but it didn't take long for me to figure out it wasn't the new brushes ;just the operator pushing the wrong button. My Goophy Euphy did what she was supposed to do- vacuum the carpet and tile floor. Goophy Euphy still wanted to take the long way to her charging station which was nothing new and easily corrected.
Over all the new brushes and filter restored Goophy Euphy back to when we first used her!
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Reviewed in the United States on July 22, 2023
★★★★★ 4
Don't be cheap like me - buy these and save yourself the hassle!
Style: 19 Pack
I made the mistake of going with another, slightly cheaper set of replacement parts for our Eufy RoboVac 11S. I did not heed the cautionary tales which lead me having to find replacement parts for the replacement parts. This brand fits our vacuum perfectly - the corner brushes don't pop off, the filter is the right size and the roller brush gets sufficiently tangled with cat hair so clearly also a good fit. My only concern (and why I only gave four stars) is - surprise! - the corner brushes. Do they stay on? YES! In fact, they is so secure, I had difficulty swapping one out. Here's the peculiarity of the brand - the "whiskers" on the spinner fell out. I found them all over the floor, on different surface types and under various conditions; they were not getting caught on any one thing. Not all at once, but over two or three uses, one of the corner brushes had become devoid of almost two entire spokes! Ironically, the little guy can't seem to pick up his own mess but I digress. Without the whiskers to grasp, removing the part was difficult. I ended up using a small flathead screwdriver for leverage to pop it off. While the other corner brush appeared to have shed some whiskers as well, it was not in need of replacement. Despite the shedding, this will be my first go-to for replacement parts next go round.
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Reviewed in the United States on September 24, 2022
★★★★★ 5
Nothing.
Style: 19 Pack
It’s as shown & working properly for now.
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Reviewed in the United States on January 1, 2026
★★★★★ 5
Good resource.
Style: 19 Pack
Tried unsuccessfully to get parts from eufy but they were out of stock Pleased to get what I needed right away here.
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Reviewed in the United States on November 27, 2025
★★★★★ 5
Essential!
Style: 19 Pack
After about 2 months of daily cleanings, the side brushes were looking a little ragged on my Eufy 12. The brushes included in this kit did come out a little bent, but as shown on the product page, when I dipped them in hot water they straightened right out.
Intrigued, I decided to try that with the original brushes. They cam out looking like new!
The only con is that the filters don't look like a perfect fit. The foam seems very minutely smaller than the original and the pleated filter seems slightly thicker.
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Reviewed in the United States on July 21, 2019