WD NasWare Red WD40EFAX 4 TB SMR
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Reliable and capacious 3.5″ internal hard drive from the 2020 NasWare Red HDD family. This line includes models from 1 GB to 10 TB, which are optimized for long-term storage of information in NAS-arrays. It is positioned as a product of the middle price category, designed for use in home and office multi-disk storage connected to the local network using high-speed network cable or wireless connections.
In addition, it can be used as an additional high-capacity HDD in a universal home PC, gaming or multimedia system. The WD NasWare Red WD40EFAX hard drive is not recommended for use as a system hard drive, but it will perfectly cope with storing large volumes of work project files, the highest quality video / photo / audio content and backups. This model uses tiled magnetic recording (SMR) technology to achieve high capacity, and the magnetic platters themselves rotate at a speed of 5400 rpm. This provides moderate heat dissipation (3.3 watts at idle), which is important when building multi-drive home NAS systems with quiet cooling. 3D Active Balance Plus dual plane balancing technology guarantees high reliability and stable performance when working 24/7.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog WD 2025 - new arrivals, bestsellers, and the most relevant models WD.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog WD 2025 - new arrivals, bestsellers, and the most relevant models WD.
Series WD Red (NAS)Compare using chart →
4000 GB, built-in, server, 3.5 ", buffer: 64 MB, write CMR, 5400 rpm, connection: SATA3, warranty 3 years
8000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
12000 GB, built-in, server, 3.5 ", buffer: 256 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
2000 GB, built-in, server, 3.5 ", buffer: 64 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
24000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
20000 GB, built-in, server, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
2000 GB, built-in, server, 3.5 ", buffer: 256 MB, write SMR, 5400 rpm, connection: SATA3
1000 GB, built-in, server, 3.5 ", buffer: 64 MB, write CMR, 5400 rpm, connection: SATA3, warranty 3 years
4000 GB, built-in, server, 3.5 ", buffer: 128 MB, 7200 rpm, connection: SATA3, warranty 5 years
14000 GB, built-in, server, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
6000 GB, built-in, server, 3.5 ", buffer: 256 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
10000 GB, built-in, server, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
6000 GB, built-in, server, 3.5 ", buffer: 256 MB, write SMR, 5400 rpm, connection: SATA3
18000 GB, built-in, server, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
22000 GB, built-in, server, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
12000 GB, built-in, server, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
6000 GB, built-in, server, 3.5 ", buffer: 64 MB, write CMR, 5400 rpm, connection: SATA3, warranty 3 years
10000 GB, built-in, server, 3.5 ", buffer: 256 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
Model overview based on user reviews
The WD NasWare Red series is highly regarded for its quiet operation, reliability, and suitability for NAS systems. Users appreciate the cool and efficient performance of models like the 2TB and 4TB, although the 8TB model is noted to be audibly louder and warmer. The drives are praised for their fast access times and low energy consumption, making them ideal for continuous use in NAS environments. However, some users express concerns about the helium technology in larger models, which may affect long-term reliability. Overall, the WD NasWare Red is considered a reliable choice for data storage, especially in NAS setups, with a few users experiencing issues with specific models, but most reporting positive long-term performance.
Pros
Cons
1 2 7 11 |
2TB model - quiet, cool, reliable 4TB model - quiet in standby, slightly audible in operation, warm 8TB model - quiet in standby, clearly audible in operation, fast 8TB model and above - the main drawback is helium, it is not eternal and constantly dissipates through the case. Unsuitable for "eternal" storage. |
good quality product I think the main advantage is that it is optimized for consumer NAS. They behave normally at work and remain cool. This is a very good indicator. This model is cheaper than buying the RE series. They are more reliable in operation than desktop models. not found  Andrey: use WD WD10EFRX week |
I bought this hard drive to install the system, programs, and store work documents. I work with video and graphics, so I needed a large capacity. So far, I'm satisfied with how it performs :) works fast, quiet, and almost doesn't heat up, fits various needs perfectly, very good capacity. don't know Aleksey: use WD NasWare Red few months i recommend it should buy |
3 out of 22 user review(s) shown
10 more user review(s)
WD NasWare Red WD40EFAX configurations
| Price for WD NasWare Red WD40EFAX | ||||
|---|---|---|---|---|
| WD NasWare Red WD10EFRX 1 TB | from £49.60 | 5 offers | |
| WD NasWare Red WD20EFRX 2 TB | from £79.75 | 8 offers | |
| WD NasWare Red WD30EFRX 3 TB CMR | from £89.99 | 12 offers | |
| WD NasWare Red WD40EFRX 4 TB CMR | from £97.11 | 10 offers | |
| WD NasWare Red WD40EFAX 4 TB SMR | from £150.00 | 2 offers | |
| WD NasWare Red WD60EFRX 6 TB CMR | from £211.50 | 5 offers | |
 | WD NasWare Red WD60EFAX 6 TB SMR | from £154.99 | 1 offer | |
 | WD NasWare Red WD80EFAX 8 TB 256/5400 | from £249.99 | 1 offer | |
| WD NasWare Red WD100EFAX 10 TB WD100EFAX | from £369.99 | 1 offer | |
| WD NasWare Red WD101EFAX 10 TB WD101EFAX | from £611.90 | 3 offers | |
Video reviews
We recommendCompare using chart →
4000 GB, built-in, server, 3.5 ", buffer: 64 MB, write CMR, 5400 rpm, connection: SATA3, warranty 3 years
4000 GB, built-in, for PC, 3.5 ", buffer: 256 MB, write CMR, 5400 rpm, connection: SATA3, warranty 3 years
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
4000 GB, built-in, for PC, 3.5 ", buffer: 256 MB, 5400 rpm, connection: SATA3, warranty 3 years
4000 GB, built-in, server, 3.5 ", buffer: 64 MB, 7200 rpm, connection: SATA3, warranty 5 years
4000 GB, built-in, server, 3.5 ", buffer: 128 MB, 7200 rpm, connection: SATA3, warranty 5 years
4TB model - quiet in standby, barely audible in operation, warm
8TB model - quiet in standby, clearly audible in operation, hot up to 52 degrees