Western Digital 22TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD221KFGX
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Availability:
In Stock.
Arrives
Wednesday, Jul 16
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Capacity: 22TB
Style: Red Pro
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
Description
Built for power users and medium-sized businesses struggling to manage rapidly growing amounts of data, WD Red Pro drives are specifically designed for NAS systems with up to 24 bays. Engineered to handle high-intensity workloads in 24x7 environments, WD Red Pro is ideal for archiving, protecting, and sharing data with a large number of users or multiple data-hungry applications. These drives add value to your business by enabling your employees to quickly share files, back up folders, and access data quickly and reliably in your NAS system.
Digital Storage Capacity: 22 TB
Hard Disk Interface: Serial ATA-600
Connectivity Technology: SATA
Brand: Western Digital
Special Feature: Portable
Hard Disk Form Factor: 3.5 Inches
Hard Disk Description: Mechanical Hard Disk
Compatible Devices: NAS Server
Installation Type: Internal Hard Drive
Color: Red
Hard Drive: 22 TB Mechanical Hard Disk
Brand: Western Digital
Series: WD Red Pro
Item model number: WD221KFGX-SPB9KN0
Item Weight: 1.48 pounds
Product Dimensions: 5.79 x 4 x 1.03 inches
Item Dimensions LxWxH: 5.79 x 4 x 1.03 inches
Color: Red
Flash Memory Size: 22 TB
Hard Drive Interface: Serial ATA-600
Hard Drive Rotational Speed: 7200 RPM
Manufacturer: Western Digital Technologies, Inc.
Language: English
Country of Origin: Thailand
Date First Available: July 18, 2022
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jul 16
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Capacity: 6TB
Style: Red Plus
I have about a dozen of these drives on my media server and so far, they've been working great. My oldest have been in use for a few years now and (knock wood!) I've had no issues with them at all. They are all installed in external multi-drive enclosures (I'm using a mixture of ProBox, IOCrest and Terramaster units) connected by USB 3 and 3.2. I keep buying more (in pairs -- one to use and one for backup) when I need to expand.
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Reviewed in the United States on May 24, 2025 by The Nurbler
Capacity: 4TB
Style: Red Plus
Works well and quick in my ugreen dxp2800 Nas. Easy to use and install, and the price per TB isn't too bad. 4tb is a good starting capacity for a server/Nas. I do like that it specifically shows that it is for a nas on the front, unlike some brands, and it looks nice.
Reviewed in the United States on June 3, 2025 by Riley
Capacity: 8TB
Style: Red Plus
I learned the hard way that putting a random collection of disk drives in my Drobo (different speeds, different capacities, and different brands) did not work well. The Drobo would be slow and have poor storage utilization. Ideally what's needed is disks of the same capacity, speed, and designed for NAS use. These WD Red Plus drives are a good compromise between capacity, speed, and price. The rotation speed is either 5400 or 5600 depending on the age of the drives. The reliability of the drives in my 5 slot Drobo has been exemplary. I had my first failure in years and was able to pop out the failed drive and put in a new one with no loss in access to my data. The Drobo is obsolete and if it stops working I'll have to replace it with a new disk array. I'd still use the WD Red Plus drives based on my good experience with them.
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Reviewed in the United States on March 29, 2025 by Gary in Portland
Capacity: 4TB
Style: Red Plus
Box was a little damaged so i suggest you ask for amazon to package it with their packaging also but drive arrived in perfect condition checked its stats everything indicated new been running it for a week it is very quiet and plenty fast for my use case
Reviewed in the United States on May 12, 2025 by harelzz
Capacity: 10TB
Style: Red Pro
Drive APPEARS to be USED but was sold as NEW. I've been buying WD HDD's since 1993 and have since talked to many WD employees on the phone. They've said that from the factory all HDD's are packed in anti-static bags with their logo on the bag and a very distinctive clean and straight heat seal mark. They also used to include a desiccant pouch in the bag to ensure any moisture that may have gotten in was absorbed, currently though they're not included. Also they have rules on how they must and must not be packaged for shipment. Amazon, as seller and shipper, have always packaged HDD's as per Western Digitals specifications. The sellers to be wary of, are Marketplace sellers. I started computing in 1983 with a Commodore 64. Back then I was in the United States Navy and for a time attached to the Aviation Intermediate Maintenance Department (AIMD) which supported The multi-million dollar aircraft 'Lockheed Orion P3C update 2&3'. I talked to Electronics Technicians (ET's) in the Micro-Min shop where they removed and replaced chips on Printed Circuit Boards (PCB's) and was made aware of ESD which today stands for Electrostatic-Discharge, but many of the Techs used 'Electrostatic Sensitive Device' for the acronym, which is just as true. As it turns out some chips, CMOS and smaller tech devices, can be destroyed by static electricity much lower in voltage/amperage than can be felt by humans walking across a carpet in the winter and touching a door knob and other such situations, so less than a human can sense. Which is why all HDD's are shipped from the factory in anti-static bags, because touching the drives PCB or the electrical connection pins could damage the drive. This is actually true of all computer components. This is an edit: You should always use a proper ESD safe wrist-strap when handling any computer component. You attach it to ground and should have jumper wires attached to all component grounding areas that you are currently working on. This is to ensure that all grounds are at the same electrical potential. Only handle cards (PCB's) on the edge, never on the contacts. Never touch any of the semiconductors on the PCB. Most modern HDD's have a relatively thin top made of stainless steel that has been stamped out of sheet SS with dented areas so as to make it more rigid. But you still don't want to handle them in that area. The infamous 'click of death' is due to unequal torqued pressure on the screws that afix the top to the cast/milled main body. The cast metal portion is the only portion that you should ever handle during installation whether it be a case drive bay or a quick release sled (docking bay). Apparently you can buy a mini torque device to re-torque the screws to the proper value, however note that the specification can change between different manufactures and models. So it's best not to not chance disturbing the torqued value from the factory. I only ever touch the cast portions (sides) of the drives, and have never had any problems with WD Drives, accept for a few DOA's that just wouldn't run. I've never had a clicking drive. I've been buying WD drives Exclusively since 1994. To give you an example of how many drives I've purchased, I have 15 computers running daily and 4 are either multi drive NAS's or NAS backups. Even though modern drives park the heads during shut down they should always be handled with kid-gloves, especially don't bump the case while the computer is running, though their arms are relatively stiff, the 'flying' heads can be made to impact the disks thus creating HARD errors on the surface. You'll probably never recover that data. Everyone building computers must be made aware of these facts, because manufacturers should not end up responsible for the mistakes of computer builders due to ignorance. It can only serve to drive up prices for their products and the cost to Amazon for logistics pertaining to unnecessary returns. Not to mention the down time of the builders awaiting a replacement part. I use these facts to ensure a HDD is in fact New and undamaged. The drive in question, that I'm reviewing, came in a generic Anti-Static bag and was sealed by a cheap heat sealer. The question everyone must ask themselves, that believe in data security, accuracy and reliability and their warranty, is: "why would anyone remove a HDD from it's original factory anti-static bag, then buy a generic anti-static bag and a cheap heat-sealer, then re-package it and sell it as NEW?" While these facts don't necessarily mean conclusively that the drive is used, one has to wonder why anyone would do all that. Probability? Possibility? Who want's to be sure? I would say a smart buyer would. I returned this drive to the seller, which cost me time, fuel and unnecessary wear and tear on my vehicle. Not to mention the cost to Amazon and the seller. Sellers have to remain honest! I bought this drive from "ALL4COMPUTERS," The UPS RETURN "proof of delivery" page said returned to "RESIDENTIAL". As I'm sure, everyone wants to get what they pay for. And no one likes scams or people that will try and cheat them. Always ensure that you are indeed getting NEW products when in fact that is what you've been told they are. As if not sure, you could end up as an ignorant loser. Ignorant: MW Definition: "lacking knowledge or comprehension of the thing specified". It's not derogatory as some believe. I'm ignorant of a great many things. Knowledge is power, so seek it and you shall learn and never be fooled again. Of course these facts are only being said for those that are unaware, for those 'in-the-know', ignore all the above advice. And please don't be offended, this has been for all those that are affected.
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Reviewed in the United States on January 15, 2025 by EssenceOfBeing
Capacity: 4TB
Style: Red Plus
I have a home NAS that is filled with WD RED drives. I wanted to expand the capacity, so I was replacing a 1TB drive, with this 4TB drive. Unfortunately, even with much time spend with support, I could not get my Synology NAS to recognize this drive. The belief was that the drive was not working. So I returned it (and purchased again. that drive did work as expected, right away). So I did just happen to receive a flawed drive. Would I purchase again: Yes Would I recommend to others: Yes
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Reviewed in the United States on May 5, 2025 by fezzik
Capacity: 6TB
Style: Red Plus
Drive exactly as advertised. Manufacture date 4 mar 2025. No problems registering at WD.Com
Reviewed in the United States on May 29, 2025 by G. Dial
Capacity: 8TB
Style: Red Plus
So far so good. using it with my DAS enclosure. No issues so far and was easy to setup. Arrived in a very secure box.
Reviewed in the United States on May 23, 2025 by Umer I.