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WD
Red
4TB
WD40EFRX
3.5" SATA 6Gb/s




WD WD
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£160.80

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Stock codeISwcr4000
Quick code41629

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4TB Data
5400 RPM
3.5"
64MB RAM
3yr Warranty
Description
WD Red - The new color of NAS WD Red hard drives are designed and tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS.

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. The right choice!
No other drive is designed specifically for home and small office NAS systems. Exclusive NASware technology.
Our exclusive technology, NASware™, makes WD Red thrive in the demanding small-NAS environment. Energy efficient and money saving.
We keep power consumption low which keeps your NAS system happy and your wallet, too.

WD RED comparison Specifications 8TB 6TB 5TB 4TB 3TB 2TB 1TB Advanced Format (AF) Yes Yes Yes Yes Yes Yes Yes Native command queuing Yes Yes Yes Yes Yes Yes Yes RoHS compliant Yes Yes Yes Yes Yes Yes Yes Performance        Data transfer rate (max)               Interface speed 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s Internal transfer rate 178 MB/s 175 MB/s 170 MB/s 150 MB/s 147 MB/s 147 MB/s 150 MB/s Cache (MB) 128 64 64 64 64 64 64 Performance Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class Reliability/Data Integrity        Load/unload cycles 600,000 600,000 600,000 600,000 600,000 600,000 600,000 Non-recoverable read errors per bits   read               MTBF (hours) 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 Limited warranty (years) 3 3 3 3 3 3 3 Power Management        12VDC ±10% (A, peak) 1.79 1.75 1.75 1.75 1.73 1.73 1.20 5VDC ±10% (A, peak)   - - - - - - Average power requirements (W)               Read/Write 6.4 5.3 5.3 4.5 4.1 4.1 3.3 Idle 5.2 3.4 3.4 3.3 2.7 2.7 2.3 Standby/Sleep 0.7 0.4 0.4 0.4 0.4 0.4 0.4 Environmental Specifications Temperature (°C)               Operating 0 to 65 0 to 65 0 to 65 0 to 65 0 to 65 0 to 65 0 to 65 Non-operating -40 to 70 -40 to 70 -40 to 70 -40 to 70 -40 to 70 -40 to 70 -40 to 70 Shock (Gs)               Operating (2 ms, read/write) 30 30 30 30 30 30 30 Operating (2 ms, read) 65 65 65 65 65 65 65 Non-operating (2 ms) 250 250 250 250 250 250 350 Acoustics (dBA)               Idle 20 25 25 25 23 23 21 Seek (average) 29 28 28 28 24 24 22
Specifications
Specifications

General

Stock code
ISwcr4000
Brand
WD
Series
Red
Model
WD40EFRX
Type
3.5" SATA 6Gb/s
UPC
718037810058
ROHS
Y
Date added
03/09/2013

WD40EFRX Spec Information

Capacity
4TB
Form factor / drive height
26mm
RPM
5400rpm
Platter size
3.5"
Access Time
?
Cache
64MB
Guarantee
3yr

WD40EFRX Speed

Read speed (Max)
150

Physical

Weight (kg)
0.68kg
Watts
4.5W
Watts (Idle)
3.3W
Watts (Sleep)
0.4W
Watts (Startup)
21.00W
Decibels (Idle)
2.5dB
Decibels (Seek)
2.8dB
Shock (Operating)
R-30g/2ms, RW-65g/2ms
Shock (Non-Operating)
250g/1ms
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Images
Video




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WD Red WD40EFRX 3.5" SATA 6Gb/s 4TB 5400rpm
WD Red WD40EFRX 3.5" SATA 6Gb/s 4TB 5400rpm
4TB
iswcr.jpg
isw_red.jpg

Stock codeISwcr4000
Quick code41629



WD
Red
4TB
WD40EFRX
3.5" SATA 6Gb/s



Hot seller
WD40EFRX review star 1WD40EFRX review star 2WD40EFRX review star 3WD40EFRX review star 4WD40EFRX review star 5 5/11 Reviews

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Description

WD Red WD40EFRX 3.5" SATA 6Gb/s 4TB 5400rpm


WD WD40EFRX logo

WD WD40EFRX Key features


4TB Data
5400 RPM
3.5"
64MB RAM
3yr Warranty


WD Red - The new color of NAS

WD Red hard drives are designed and tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS.

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.

The right choice!
No other drive is designed specifically for home and small office NAS systems.

Exclusive NASware technology.
Our exclusive technology, NASware™, makes WD Red thrive in the demanding small-NAS environment.

Energy efficient and money saving.
We keep power consumption low which keeps your NAS system happy and your wallet, too.

WD RED comparison
Specifications 8TB 6TB 5TB 4TB 3TB 2TB 1TB
Advanced Format (AF) Yes Yes Yes Yes Yes Yes Yes
Native command queuing Yes Yes Yes Yes Yes Yes Yes
RoHS compliant Yes Yes Yes Yes Yes Yes Yes
Performance       
Data transfer rate (max)              
Interface speed 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s 6 Gb/s
Internal transfer rate 178 MB/s 175 MB/s 170 MB/s 150 MB/s 147 MB/s 147 MB/s 150 MB/s
Cache (MB) 128 64 64 64 64 64 64
Performance Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class 5400 RPM Class
Reliability/Data Integrity       
Load/unload cycles 600,000 600,000 600,000 600,000 600,000 600,000 600,000
Non-recoverable read errors per bits  
read              
MTBF (hours) 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000
Limited warranty (years) 3 3 3 3 3 3 3
Power Management       
12VDC ±10% (A, peak) 1.79 1.75 1.75 1.75 1.73 1.73 1.20
5VDC ±10% (A, peak)   - - - - - -
Average power requirements (W)              
Read/Write 6.4 5.3 5.3 4.5 4.1 4.1 3.3
Idle 5.2 3.4 3.4 3.3 2.7 2.7 2.3
Standby/Sleep 0.7 0.4 0.4 0.4 0.4 0.4 0.4
Environmental Specifications
Temperature (°C)              
Operating 0 to 65 0 to 65 0 to 65 0 to 65 0 to 65 0 to 65 0 to 65
Non-operating -40 to 70 -40 to 70 -40 to 70 -40 to 70 -40 to 70 -40 to 70 -40 to 70
Shock (Gs)              
Operating (2 ms, read/write) 30 30 30 30 30 30 30
Operating (2 ms, read) 65 65 65 65 65 65 65
Non-operating (2 ms) 250 250 250 250 250 250 350
Acoustics (dBA)              
Idle 20 25 25 25 23 23 21
Seek (average) 29 28 28 28 24 24 22

Specifications

General

Stock code
ISwcr4000
Brand
WD
Series
Red
Model
WD40EFRX
Type
3.5" SATA 6Gb/s
UPC
718037810058
ROHS
Y
Date added
03/09/2013

WD40EFRX Spec Information

Capacity
4TB
Form factor / drive height
26mm
RPM
5400rpm
Platter size
3.5"
Access Time
?
Cache
64MB
Guarantee
3yr

WD40EFRX Speed

Read speed (Max)
150

Physical

Weight (kg)
0.68kg
Watts
4.5W
Watts (Idle)
3.3W
Watts (Sleep)
0.4W
Watts (Startup)
21.00W
Decibels (Idle)
2.5dB
Decibels (Seek)
2.8dB
Shock (Operating)
R-30g/2ms, RW-65g/2ms
Shock (Non-Operating)
250g/1ms
Alternatives
WD Desktop Blue WD40EZRZ 3.5" SATA 6Gb/s 4TB 5400rpm
WD Desktop Blue WD40EZRZ 3.5" SATA 6Gb/s 4TB 5400rpm
ex.VAT £121.00
inc.VAT £145.20

2 days Leadtime

WD Blue SSHD (inc. 8GB SSD) WD40E31X 3.5" SATA 6Gb/s 4TB 5400rpm
WD Blue SSHD (inc. 8GB SSD) WD40E31X 3.5" SATA 6Gb/s 4TB 5400rpm
ex.VAT £149.00
inc.VAT £178.80

2 days Leadtime

WD Purple NV WD4NPURX 3.5" SATA 6Gb/s 4TB 5400-7200
WD Purple NV WD4NPURX 3.5" SATA 6Gb/s 4TB 5400-7200
ex.VAT £137.00
inc.VAT £164.40

2 days Leadtime

WD Purple WD40PURX 3.5" SATA 6Gb/s 4TB 5400-7200
WD Purple WD40PURX 3.5" SATA 6Gb/s 4TB 5400-7200
ex.VAT £121.00
inc.VAT £145.20

2 days Leadtime

WD AV WD40EURX 3.5" SATA 6Gb/s 4TB 5400-7200
WD AV WD40EURX 3.5" SATA 6Gb/s 4TB 5400-7200
ex.VAT £122.00
inc.VAT £146.40

2 days Leadtime

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WD Red WD40EFRX reviews


07/11/2016 | Guest | AU Flag |
Is there a surcharge for credit card payment?

Reply from SPAN.COM | 07/11/2016

We do not charge for using a credit card, if you wish to use AMEX please use the PayPal portal


SPAN.COM tech team
22/07/2016 | | SE Flag |
Customer has rated the product, but left no comment

Reply from SPAN.COM | 25/07/2016

28/05/2016 | | GB Flag |
I've been a user of WD drives for 10+ years and these WD Reds are gonna keep me buying for another 10+ ..

Reply from SPAN.COM | 30/05/2016

19/03/2016 | | GB Flag |
Great drive but like all hard drives it should be 4tb once the op system is loaded on it not 3.65

Reply from SPAN.COM | 19/03/2016

the answer is mathematical !

A 4TB drive is 4,000,000,000,000 Bytes.
A Kilobyte is 1024 Bytes, not 1000 Bytes.
The same goes for KB-MB, MB-GB, and GB-TB.
So dividing 4,000,000,000,000 by 1024 then 1024 then 1024 then 1024 you will get... 3.65TB

If you look at the raw info for your drive, you will see that.

SPAN.COM tech team
01/03/2016 | | GB Flag |
Customer has rated the product, but left no comment

Reply from SPAN.COM | 01/03/2016

20/01/2016 | | GB Flag |
Customer has rated the product, but left no comment

Reply from SPAN.COM | 20/01/2016

12/01/2016 | | GB Flag |
Customer has rated the product, but left no comment

Reply from SPAN.COM | 12/01/2016

05/12/2015 | | GB Flag |
Customer has rated the product, but left no comment

Reply from SPAN.COM | 05/12/2015

23/11/2015 | | GB Flag |
What makes a NAS drive different from a standard consumer drive?

Reply from SPAN.COM | 23/11/2015

NAS Hard drives are designed to be more read and write active in the areas that you find in a NAS storage enviroment. Also, they use less power hour for hour and are designed to be left on for 24hours a day, 7 days a week.

SPAN.COM tech team
25/04/2015 | | GB Flag |
Grand service as ever. It's a real pleasure to be able to talk to a human rather than a CRM bot. I'll certainly choose Span over the deadnoghts of amazon!

Reply from SPAN.COM | 27/04/2015

17/10/2014 | | GB Flag |
arrived on time and now working just fine

Reply from SPAN.COM | 17/10/2014

27/06/2014 | | GB Flag |
Span - fast, efficient and delivers when they say they will.

Reply from SPAN.COM | 27/06/2014



* Image courtesy of stockimages at FreeDigitalPhotos.net
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trustpilot review

DISCLAIMER: Product information and images on this page are for guidance only and are liable to change without notice. Some details may refer to the whole category or range, rather than this particular item. Specifications shown are our best interpretation of information supplied by the manufacturer, and are as up-to-date as possible. If you require clarification on any item, please contact us and we will be glad to help you.


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