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Western Digital Red 4TB SATA III 3.5" Hard Drive

CCL Code: HDD2167
Manufacturer Code: WD40EFRX
Manufacturer: Western Digital
Western Digital Red 4TB SATA III 3.5" Hard Drive

Key Features:

  • 4TB Capacity
  • IntelliPower Spin Speed
  • SATA III Interface
  • 64MB Cache
  • 3.5" Form Factor
  • 3 Year Warranty

Delivery Options

Friday 17th July via Priority DPD

Free Delivery by Thursday 23rd July

Collection Options

Collection is currently unavailable

Our Leeds/Bradford showroom is currently closed until further notice in order to keep our staff and customers safe.

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WD Red is the only hard drive designed for NAS systems that have 1-5 drive bays. Available in capacities ranging from 1 TB to 3 TB, WD Red is designed specifically for home and small office NAS systems. The drives are extensively tested for compatibility and reliability in the demanding operating environment of a 24x7 NAS system. WD's exclusive NASware firmware technology enables seamless integration and balanced performance. Innovative technology reduces power consumption and lowers the operating temperature, and with a 35% improvement in MTBF over desktop drives, WD Red is a more reliable and robust NAS hard drive solution.

As hard drive capacities increase, the power required to run those drives increases as well. WD Green drives make it possible for energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation.

Main Features

  • WD meets the technological challenges of implementing 3 TB SATA hard drives - SATA hard drives are now capable of storing up to 3 TB of data on a single hard drive. WD is leading the way in the industry, providing you with solutions for implementing 2.19 TB and larger drives
  • Reduced power consumption - WD has reduced power consumption making it possible for our energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation
  • Cool and quiet - Drives with WD GreenPower Technology yield lower operating temperatures for increased reliability and low acoustics for ultra-quiet PCs and external drives
  • Perfect for external drives - External drive manufacturers can eliminate the need for a fan in a high-capacity product by utilizing the cool and quiet operation of WD Caviar Green hard drives
  • IntelliPower - A fine-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both significant power savings and solid performance. Additionally, WD Caviar Green drives consume less current during startup allowing lower peak loads on systems as they are booted
  • IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise and vibration
  • Advanced Format (AF) - Technology being adopted by WD and other drive manufacturers as one of multiple ways to continue growing hard drive capacities. AF is a more efficient media format that enables increased areal densities. (RS and RSDTL models only)
  • NAS compatibility
  • Enhanced reliability
  • The secret is in the technology NASware
  • Energy efficient
  • 3D Active Balance Plus
  • Premium support
  • Longer warranty coverage

Hard Disk

Disk Capacity 4000 GB
Drive Capacity 4000 GB
Disk Size 3.5 Inches
Drive Size 3.5 Inches
Interface SATA 6Gb/s
Drive Interface SATA 6Gb/s
Data Buffer/RAM 64 MB


Operating Temperature 0 to 70 °C
Non Operating Temperature -40 to 70 °C
Shock (Operating) 30Gs for 2ms
Shock (Non Operating) 300G for 2ms
Acoustics (Seek Mode) 25 dB
Acoustics (Idle Mode) 24 dB


Form Factor Hard Disk Drive
Enclosure type Internal
Width 10.16 cm
Depth 14.7 cm
Height 26.1 cm
Weight 0.60 kg
Barcode 718037810058


Spicers Number 134557
ISPC Code 40363


Warranty 3 Year Limited Warranty


Total Hard Disk Size 4 TB

Key Features

Disk Speed IntelliPower
Interface Type SATA III
Cache Memory 64 MB
Solid State Drive No
Disk Form Factor 3.5
Interface Type SATA III
Condition New
Disk Speed IntelliPower
HDD Purpose NAS

Item Details

Manufacturer Western Digital
Manufacturer Code WD40EFRX
EAN 0718037810058
UPC 718037810058
Condition New

Warranty Information

Warranty 3 Year Limited Warranty

Manufacturer Information

Manufacturer Western Digital
Manufacturer Code WD40EFRX

Do you have you a question about the Western Digital Red 4TB Hard Drive?

Q: Are these drives retail boxed or OEM? Are they accepted by the 3 year warranty?
Answer by Website User on 25th August 2016
These are OEM and yes, they are accepted by the 3 year warranty
0 customers found this answer helpful.
Post Answer
Q: how does this differ performance wise to the green?
Answer by Website User on 11th March 2015
Generally speaking, Greens are eco-friendly oriented with less power consumption, whereas Reds are performance oriented drives that spin at variable rates and are suited to 24/7 operation in a RAID array. Therefore the Reds have a higher performance rate than the Greens. -Jake
0 customers found this answer helpful.
Post Answer
Q: 'The drives currently in our warehouse have Nasware 3.0' - Can you confirm this is is still the case as of 29.12.14.. thank you
Answer by Dan on 31st December 2014
Yes, they are indeed still NASWare 3.0. -Danlevan
0 customers found this answer helpful.
Post Answer
Q: Is this the Nasware 2.0 or Nasware 3.0 version thanks
Answer by Website User on 8th December 2014
The drives currently in our warehouse have Nasware 3.0. -Danlevan
1 customer found this answer helpful.
Post Answer
Q: Will this HDD go inside a NAS Network Storage box, i've check the NAS compatibility list and it says it is but i just want to double check with you guys?
Answer by Dan on 5th September 2014
It will, yes. These drives are designed for use in a NAS. -Danlevan
0 customers found this answer helpful.
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Q: On the spec this says, 3D Active Balance Plus....does this mean if I have a 3d film on my drive I can watch it in 3D
Answer by CCL on 12th October 2013
Western Digital that 3D Active Balance Plus technology equates to the fact that "Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time." -* RH
0 customers found this answer helpful.
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4 / 5 11 reviews


4 months ago

I purchased this as an additional drive to be added to an existing RAID group. The drive sits beside other WD Red drives with an earlier version of NASware and they get on with the job they're there to do.


5 months ago

Plug into the storage network and forget them. Great drives that go on and on.


8 months ago

Great product Great price and Great service yet again from ccl

David in Cheltenham

10 months ago

This is the third Western Digital Red 4TB HDD I have purchased and so far, the first 2 being proved to be very reliable and have not had any issues or faulty sectors over 4 years in a NAS drive. Of my many Western Digital HDD's bought over many years; I have had one failure which was speedily replaced under warranty.


11 months ago

Good and reliable drives for my NAS


12 months ago

Great product, customer support, price & delivery options. Highly recommended!

Paul Smith

June 2019

used same product previously, always a good buy.

Mr Zipf

April 2019

Item arrived well packaged against damage and was straightforward to install and setup. Hoping for several years use.

Kevin Webb

March 2019

What can you say, it's a disk drive, but classic WD quality, they just work and keep on working


December 2018

This disk with its godlike mechanically spinning platter was easily installed into my NAS' raid and the RAID rebuilt successfully, I can now sleep peacefully knowing my state of the art RAID5 is back to it's top notch self. 10/10 will see you again soon WD


October 2018

This is a great product. I previously bought 2 of these drives from Amazon which failed within 3 months. Both drives came from Amazon loose in a large box with no protection. I bought the same from CCL computers and it came packed in proper hard drive padded protection case. We are now well past the three month mark and its working fine. It is clear CCL Computers treats these drives with the care they deserve.