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WD NasWare Red WD40EFRX 4 TB
CMR

Photos - Hard Drive WD NasWare Red WD40EFRX 4 TB CMR
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Жорсткий диск Western Digital Red Plus NAS 2TB 5400rpm 128МB WD20EFPX 3.5 SATA III

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WD WD40EFRX
Placement
built-in
Type
HDD
Features
server
Size
4000 GB
Form factor
3.5 "
Connection
SATA3
Manufacturer's warranty
3 years
Cache memory
64 MB
Record technology
CMR
RPM
5400 rpm
Operation power consumption
4.5 W
Standby power consumption
3.3 W
Shockproof
65 G
Reading noise level
28 dB
Standby mode noise level
25 dB
MTBF
1 M h
MTBF
600 K
Added to E-Catalog
October 2013
Optimized for RAID and NAS.
Not suitable for the role of the main system disk.
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.
How to Choose a Hard DriveUnderstanding how to choose the right HDD for gaming, video recording, server, and other tasks

WD NasWare Red WD40EFRX 4 TB
CMR
price graph

    8
    6
    23
    77
    I do not recommend.
     5 January 2020 
    Two 4TB each in a zero raid, I expected much better performance. A year later, one fell down. The old 1TB seagate with PS works faster.
    It’s hard to say, I bought it because of the past glory of the name, I was mistaken.
    Questionable reliability
    Valeriy Proshkinuse WD WD40EFRX more than year
    РЕКОМЕНДУЮ-ЗА ТАКI КОШТИ НЕ ПОГАНИЙ HDD ДЛЯ ЗБЕРIГАННЯ ДАНИХ
     23 December 2024 
    БУВ СIАГЕЙТ ПРОСЛУЖИВ 8 РОКIВ- РIШИВ СПРОБУВАТИ ПЕРЕЙТИ НА WD
    ДЛЯ СТАРИХ-НЕ СУЧАСНИХ IГОР, ВIДЕО, МУЗИКИ, ДОКУМЕНТIВ-ТЕ ЩО ТРЕБА
    Without revealing
    2 out of 130 user review(s) shown
    10 more user review(s)

    WD NasWare Red WD40EFRX configurations

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    Red Baron

    De jure, WD Red is a hard drive for creating RAID arrays (mirror or serial) and installing in NAS servers. The spindle speed is 5400 rpm, that is, compared to other PC components, it is almost silent. 64 MB of buffer memory to speed up the processing of the smallest files. Sequential read and write is performed at 150 – 160 MB / s, which is quite fast by the standards of low-speed HDDs.

    Round the clock work

    Implemented in Red a number of proprietary technologies WD. First, NASware 3.0 firmware provides 100% compatibility with popular NAS server models, 24/7 operation, and easy RAID scalability. Simply put, you can install additional drives even without having to reboot your PC or NAS server — the operating system will attach them to the shared disk space, as they say, "on the fly".

    Quiet and smooth

    Secondly, 3D Active Balance Plus balances magnetic plates in two planes with precision, thereby reducing vibration and increasing HDD reliability. Finally, thirdly, IntelliPower automatically changes the data transfer rate and the smart caching algorithm depending on the load. Indeed, from our personal experience we can confirm that Red, regardless of the size, are among the quietest 3.5-inch HDDs on the market.

    For home and office

    But de facto, the WD Red is a fairly versatile, quiet and reliable hard drive that's great for a home or work PC as an addition to a fast but low-capacity SSD. That is, whether the scope of its application is not limited to NAS servers alone. WD Red is not suitable except for the role of the main system drive — for this task it is better to choose Blue or Black at 7200 rpm (read and write speed 200 – 220 MB / s).