USA

WD NasWare Red WD40EFRX 4 TB
CMR

Photos - Hard Drive WD NasWare Red WD40EFRX 4 TB CMR
$161.25 
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WD Red Plus 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 64MB

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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.
Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
Catalog WD 2024 - new products, best sales and most actual models WD.
Video reviews

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).

WD NasWare Red WD40EFRX configurations

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