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Western Digital 2TB Red 3.5 inch NAS Hard Disk Drive WD20EFRX

Stock may vary from item pictured. Retail pictures do not guarantee retail products.


2TB WD Red WD20EFRX, 3.5" NAS HDD, SATA III - 6Gb/s, 5400rpm, 64MB Cache, NCQ

This item is currently discontinued and at present, we have no replacement on order.
 Web Only Product 
Quickcode: 51314  
Stock code: HDR-SOV1TB-WD20EFRX
Manuf. code: WD20EFRX
Cust. Rating:   Read reviews.
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The 2TB WD RED is a high-quality HDD that delivers incredible performance thanks to its easy to use 3.5inch form factor that is just 26.1mm in height, the drive speed is 5400rpm. The WD RED HDD's technical highlight is it’s 6Gb/s interface, which is the latest SATA III standard. This drive in particular has a storage capacity of 2TB and has a 64MB Cache with an access time of 2ms.

3.5 inch





Network it in RED

Our formula for success at WD has led to the growth of the WD RED making it available in the highest capacities possible. Now up to 10TB, WD offers an even broader, more comprehensive portfolio of NAS solutions for our customers spanning from a total of 1 to 8 bays. This will allow you to store even more data for your home or small business. The WD RED family just got bigger.

High-End NAS Hard Drives

Everyday Performance

Designed for NAS Storage

WD RED is the only hard drive designed for NAS systems that have 1-8 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS. WD eliminates the confusion. These drives are designed for personal, home, and small business NAS systems up to 8-bays.

Optimise your NAS Experience

Solid Reliability

NASware grows to 3.0

Built to deliver the best NAS experience, NASware 3.0 extends our promise by further optimising WD RED for the NAS environment with added support for 6 to 8 NAS bays. WD RED now supports small NAS systems from 1 to 8 bays thanks to NASware 3.0, which further improves drive compatibility and reliability. At 80TB of total capacity in an 8 bay system, WD RED expands your NAS experience.

Ways to Use Your NAS

NAS Home

NAS for Home

Take your connected home environment to the next level with a NAS system that is equipped with WD RED hard drives and enjoy streaming your media, backing up your computers, file sharing and managing your digital content faster and easier. The WD RED NASware 3.0 experience with increased compatibility makes sharing from your mobile device, computer, TV, stereo and more an instant gratification. WD RED enables you to create your own reliable Personal Cloud.

NAS Business

NAS for Business

Increase the efficiency and productivity of your small business with WD RED hard drives for your 1 to 8 bay NAS system. WD RED comes equipped with NASware 3.0, which increases system compatibility allowing for seamless integration with your existing network infrastructure. Add value to your business by enabling your employees to quickly share their files and back up folders reliably with WD RED NAS hard drives. For medium to large business that use up to 16 bay NAS systems, use WD RED Pro.

WD RED Features


NAS Compatibility
Advanced firmware technology built into every WD RED drive, NASware 3.0 enables seamless integration, robust data protection and optimal performance for systems operating in NAS and RAID.

Right Choice

The Right Choice
WD RED is designed specifically for home and small office NAS systems and PCs with RAID.


Enhanced Reliability
Since your NAS system is always on, a highly reliable drive is essential. With a 35% MTBF improvement over standard drives, the WD RED drive with NASware 3.0 is designed for the 24x7 environment.

Warranty Information:

Manufacturer western digital
Warranty Type Direct with Manufacturer
Manufacturer Website
Warranty Period (yrs)3
Rotational Speed7200
Storage Capacity -GB2000
Read Speed0
Write Speed0

Comments, Questions & Reviews:

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Question  Replacement for MyCloud by James

Hi, My 2tb WD MyCloud NAS was knocked off the desk by my cat and hit the floor hard, not willing to go to the expense of data recovery specialists as the data wasn't important, I tried it, an it sounds like the read/write heads inside are bent or off the ramp. This hard drive looks the same, if I take the nas logic board off the broken drive and put it on this one, then put it back in the housing it should work exactly the same shouldn't it?? Or will I need to write an image file to the new drive?

Answer by shaund on Monday, January 4, 2016
Hi James,

This drive will be fine to go into that NAS Drive, unfortunately it doesn't seem as simple as changing the hard drive, you will have to add certain files to the drive itself, you will be able to find guides online to do this.

Question  Dell Precision T3400 by pdizer

Will these work in a Dell Precision T3400 / Intel Core 2 Quad Q6600 @ 2.40GHz / Dell Inc. 0TP412 (CPU)? Using as home server, I want to put in 2 , one for bu. Alternatively, I am also looking at your 2TB Seagate Barracuda ST2000DM001 or your 2TB Toshiba DT01ACA200. Your advice would be appreciated.
Many thanks, Peter

Answer by patrickc on Sunday, April 6, 2014
As long as it has sata support I cannot see an issue with this. If you are wanting to run it in raid I would suggest checking the motherboard has support for this.

 Its a Good One by 2TB Western Digital Red SATA lll

I purchased this WD 2tb SATA111 (red) HDD to replace a 1.5tb Samsung that had decided to give up working after 15 months of very light use, much the same as an identical Samsung did after 10 months, luckily I got that one exchange under warranty but don't intend to keep it for much longer. The WD is not only a very quiet drive it is surprisingly fast, plus being the "red" version is likely to be a lot more reliable and should last a lot longer. A very good purchase at a reasonable price, throw in the exceptional service you get from Aria and you go away a very happy customer. An excellent hard drive that continues to impress. No more Samsung's for me.

1166 of 2422 people rated this review as helpful

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 2Tb WD Red by markh

I purchased this drive for use with a DNS343 4 bay NAS and it works perfectly, and is very quiet. If using for a Nas box make sure that it is compatible as i took the risk that it would work with my nas box, and luckily for me it did.

1222 of 2459 people rated this review as helpful

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Question  restock ETA by Marinos

Do you guys have any ETA for restocking these drives?

Answer by PeterW on Monday, October 1, 2012
These are back in stock, we only have a VERY small amount of stock available so order now if you want them. Western Digital released these drives around 2 months ago and somehow ran out of stock so we have had issues getting hold of them!