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WD Red Plus WD40EFPX 4 TB
256/5400

Photos - Hard Drive WD Red Plus WD40EFPX 4 TB 256/5400
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from £77.99 up to £130.50 
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WD WD40EFPX
3 year warranty
2 TB
64/5400
2 TB
128/5400
4 TB
128/5400
4 TB
256/5400
6 TB
256/5400
8 TB
256/5700
10 TB12 TB14 TB
Placement
built-in
Type
HDD
Features
server
Size
4000 GB
Form factor
3.5 "
Connection
SATA3
Manufacturer's warranty
3 years
Cache memory
256 MB
Record technology
CMR
RPM
5400 rpm
Data transfer rate
185 MB/s
Operation power consumption
4.7 W
Standby power consumption
3.1 W
Reading noise level
27 dB
Standby mode noise level
23 dB
MTBF
1 M h
MTBF
600 K
Size
147x102x26 mm
Weight
570 g
Official Website
westerndigital.com
Added to E-Catalog
December 2022

A line of highly specialized 3.5″ HDD drives from the American manufacturer Western Digital. They are part of the specialized WD Red server series, belong to the upper price range, and are focused on round-the-clock operation as part of home, office and commercial NAS servers. Presented HDD volume from 2 to 14 TB. Made in a 3.5-inch form factor, using a standard SATA connection, equipped with additional cache memory (from 64 to 256 MB) and have a long MTBF.

WD Red Plus has important features to optimize your server shelf experience. An adaptive compensation system with a shaft fixed on both sides and three-dimensional balancing minimizes the negative effects of vibration. Another important aspect is that the heads are parked only when the power is turned off, which allows the drive to continue working even in standby mode. Well, the built-in NASware technology suite increases the compatibility of WD Red drives with a home or office network, which is connected to numerous PCs, laptops, smartphones, TVs and other equipment with a Wi-Fi connection. All this makes WD Red Plus hard drives ideal for server needs to ensure stable and uninterrupted operation.

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

Buy WD Red Plus WD40EFPX 4 TB
256/5400

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Western Digital Red Plus WD40EFPX internal hard drive 3.5" WD40EFPX

The WD40EFPX from Western Digital is a high-performance 4 TB HDD designed specifically for NAS systems. With a rotational s... morepeed of 5400 RPM, this drive offers a reliable solution for data storage, ensuring smooth operation and efficient access to your files. The 256 MB storage drive buffer enhances data transfer rates, making it an ideal choice for multi-user environments where performance is crucial. Engineered for NAS applications, the Western Digital Red Plus series, including the WD40EFPX, is built to handle the demands of 24/7 operation. This drive is optimized for RAID configurations, providing enhanced data protection and reliability. Its Serial ATA III interface ensures compatibility with a wide range of systems, making it a versatile addition to your storage solutions. What sets the WD40EFPX apart from competitors is its advanced NASware 3.0 technology, which improves drive reliability and performance in NAS environments. This technology not only enhances data integrity but also optimizes power consumption, making it an eco-friendly choice for users looking to reduce their carbon footprint. Trust Western Digital for your storage needs, and experience the difference with the WD40EFPX. ...
Senetic.co.uk
Delivery: to United Kingdom
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£97.94
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Western Digital Red Plus 4TB SATA 6Gbs 3.5 Inch 5400 RPM Internal Hard

Packed with power to handle the small- to medium-sized business NAS environments and increased workloads for SOHO customers,... moreWD Red Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems.
OfficeStationery.co.uk
Delivery: in United Kingdom
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£130.50
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Western Digital 4TB RED PLUS 256MB CMR 3.5IN WD40EFPX

. Packed with power to handle the small- to medium-sized business NAS environments and increased workloads for SOHO customers... moreWD Red Plus is ideal for archiving and sharing as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems these drives give you the flexibility versatility and confidence in storing and sharing your precious home and work files. Key Product Info . For small or medium businessesExclusive NASwareWD Red Pro for big business3D active balance plus24/7 environment . Product Features For small or medium businessesStream backup share and organize your digital content with a NAS and WD Red Plus drives designed to effortlessly share content with the devices at your home or business. NASware technology increases your drives' compatibility with your existing network and devices. For larger businesses with up to 24 bays count on WD Red Pro drives to deliver exceptional performance. Exclusive NASwareNot just any drive will do. Get a large capacity in your 8-bay NAS system and with Western Digital's exclusive NASware technology you can optimize each and every drive. Built into every WD Red hard drive NASware advanced technology improves storage performance by increasing compatibility integration upgradeability and reliability. WD Red Pro for big businessIf you're looking for heavy-duty performance for NAS WD Red Pro NAS hard drives deliver exceptional performance for medium to large business customers with extreme demands. For NAS environments with 9 to 24 bays WD Red Pro drives deliver uncompromising performance. 3D active balance plusThe enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system reduce the hard drive life span and degrade the performance over time. 24/7 environmentSince your NAS system is always on a reliable drive is essential. With an MTBF of up to 1 million hours the WD Red Plus drive is engineered to tackle 24 x 7 environments. .
ServersDirect.co.uk
Delivery: in United Kingdom
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£94.97
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WD Red Plus WD40EFPX - hard drive - 4 TB - SATA 6Gb/s

WD Red Plus WD40EFPX - hard drive - 4 TB - SATA 6Gb/s
Business.Currys.co.uk
Delivery: to United Kingdom
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£105.58
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WD Red Plus 4TB 5400 RPM Serial ATA III 3.5 256MiB

Packed with power to handle the small- to medium-sized business NAS environments and increased workloads for SOHO customers,... moreWD Red Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files.
Store.ee.co.uk
Delivery: to United Kingdom
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£96.09
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11 more offer(s)

WD Red Plus WD40EFPX configurations

Price for WD Red Plus WD40EFPX
WD Red Plus WD20EFPX 2 TB
64/5400
from £81.4913 offers
WD Red Plus WD20EFZX 2 TB
128/5400
from £85.446 offers
WD Red Plus WD40EFZX 4 TB
128/5400
from £120.991 offer
WD Red Plus WD40EFPX 4 TB
256/5400
from £77.9916 offers
WD Red Plus WD60EFPX 6 TB
256/5400
from £136.3914 offers
WD Red Plus WD80EFPX 8 TB
256/5700
from £168.9912 offers
WD Red Plus WD101EFBX 10 TBfrom £219.4910 offers
WD Red Plus WD120EFBX 12 TBfrom £242.0810 offers
WD Red Plus WD140EFGX 14 TBfrom £361.841 offer
Video reviews
What WD Red Plus Means for the Industry
28 June 202019 024 view
WD Red Plus NAS Drives - The NAS SMR Issue Solution?
25 June 202015 845 view
Unboxing WD 10TB Red Plus 5400 rpm SATA III 3 5" Internal NAS HDD
6 December 20202 265 view
WD Red Plus HDD Noise Level Test
26 February 202132 070 view

The choice of professionals

The WD Red Plus WD40EFPX 4 TB hard drive provides ideal conditions for server systems with increased and round-the-clock loads. Thanks to 3D Active Balance Plus technology, which includes a two-sided central spindle mount and two-axis rotation adjustment based on sensor readings, the device demonstrates high reliability in RAID arrays. This eliminates unnecessary vibrations and imbalance, especially when installing the drive in network storage with up to 8 bays. This solution guarantees an increased service life of the device. An additional advantage is NASware 3.0 technology, which allows you to achieve maximum performance when working with NAS systems and network equipment from various manufacturers.

Video surveillance without restrictions

WD Red Plus WD40EFPX is suitable for streaming recording from surveillance cameras and broadcasting in online and offline mode with virtually no restrictions. The device is capable of processing several dozen streams simultaneously in both directions, which makes it an excellent choice for both home needs and complex video surveillance systems for small and medium businesses. The use of CMR technology and a built-in 256 MB cache ensures high recording efficiency without gaps and data loss. In general, the model has a balanced power consumption, low heat generation and fully meets the requirements of server systems and video recorders.

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Filters
Models
WD Red Plus often compared
WD Blue
WD Red Plus
[WD40EFPX]
vs
WD Blue
[WD40EZAX]
WD Purple Surveillance
WD Red Plus
[WD40EFPX]
vs
WD Purple Surveillance
[WD43PURZ]
WD Purple Surveillance
WD Red Plus
[WD40EFPX]
vs
WD Purple Surveillance
[WD42PURZ]
Seagate IronWolf
WD Red Plus
[WD40EFPX]
vs
Seagate IronWolf
[ST4000VN006]
WD Red Pro
WD Red Plus
[WD40EFPX]
vs
WD Red Pro
[WD4003FFBX]
WD NasWare Red
WD Red Plus
[WD40EFPX]
vs
WD NasWare Red
[WD40EFAX]