Your data. Your choice.

If you select «Essential cookies only», we’ll use cookies and similar technologies to collect information about your device and how you use our website. We need this information to allow you to log in securely and use basic functions such as the shopping cart.

By accepting all cookies, you’re allowing us to use this data to show you personalised offers, improve our website, and display targeted adverts on our website and on other websites or apps. Some data may also be shared with third parties and advertising partners as part of this process.

Legal noticePrivacy notice

WD Red

4 TB, 3.5"
751Ratings
BrandMore from WD
Currently out of stock
Free shipping starting at 39,–

Product details

The WD WD40EFAX from the WD Red series is specifically designed for NAS systems. It has been extensively tested for 24/7 continuous operation. Thanks to the special NASware firmware and 3D Active Balance Plus technology, the WD40EFAX enables seamless integration, high data security, and optimal performance for NAS and RAID environments. The WD40EFAX is designed for particularly low noise levels and low energy consumption, and it features the SATA-600 standard.

Key specifications

Interface version
SATA III
Storage Technology
SMR
Max. Speed
5400 RPM
Cache
256 MB
Sustained Speed HDD
180 MB/s
Scope of application
NAS
Item number
12535207

General information

Manufacturer
WD
Category
Hard drives
Product Safety
Release date
15/1/2020
External links
Manufacturer's site (de)

Data storage properties

Scope of application
NAS
Interface version
SATA III
Form factor
3.5"
Storage capacity
4 TB
Cache
256 MB
Sustained Speed HDD
180 MB/s
Max. Speed
5400 RPM
Storage Technology
SMR
Hard disk filling
Helium
Hard disk additional functions
Native command queuing

Operating conditions

Maximum operating temperature
70 °C

Noise emission

Max. noise level
28 dB

Power supply

Power consumption (standby)
0.60 W
Power consumption
4.50 W

Sustainability

Manufacturer commitment
SBTi

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
HDD

Product dimensions

Length
14.70 cm
Width
10.16 cm
Height
2.61 cm
Weight
635 g

Package dimensions

Length
20.90 cm
Width
13.50 cm
Height
6.20 cm
Weight
622 g

Legal Notice

Product Safety

Report concern

Compare products

Goes with

Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «Hard drives» category have a defect within the first 24 months?

Source: Galaxus
  • 2.Synology
    0,8 %
  • 4.HPE
    0,9 %
  • 5.Toshiba
    1,6 %
  • 5.WD
    1,6 %
  • 7.Seagate
    1,9 %

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • 1.HPE
    3 days
  • 1.Seagate
    3 days
  • 1.Toshiba
    3 days
  • 1.WD
    3 days
  • 5.Synology
    4 days

Return rate

How often is a product of this brand in the «Hard drives» category returned?

Source: Galaxus
  • 1.Ubiquiti
    1,2 %
  • 2.Synology
    1,5 %
  • 3.WD
    2,3 %
  • 4.Toshiba
    2,6 %
  • 5.Seagate
    3,4 %
Source: Galaxus