Western Digital 4TB, 5400rpm, 128MB, SATAIII, Red Plus, CMR

Picture may differ from actual product, there can be accessories and parts not supplied with the actual product.
ID: 1291588 Product code: WD40EFZZ
In stock 25 units
Warranty: 3 years
191.34 €
Ready for dispatch
on Monday, 16.03.2026
starting from 0 €
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Main product parameters All parameters
  • Capacity: 4 TB
  • Data Interface: SATA III
  • Spindle rotation speed: 5400 rpm
  • Data buffer: 128 MB
All parameters
Capacity 4 TB
The HDD capacity in Gigabytes indicates how much information can be stored by the HDD. The capacity of the HDD is fixed and cannot be increased after buying the HDD. Therefore, upon buying the HDD you should verify its compliance with your current volume requirements and provides a reserve for future needs.
Use : NAS
Data Interface SATA III
The connection of the HDD to the computer. The current industry standard is SATA connection. IDE connection is available with older computers. Prior to buying the HDD you should verify whether the motherboard has a free connection slot and the support for the chosen disc capacity.
Spindle rotation speed 5400 rpm
The HDD rotations. The HDDs of most desktop computers have 7200rpm and this has already become the industry standard. If you want to achieve a higher speed you should buy the HDD of 10000rpm. The operation noise, temperature and power consumption of 10000rpm HDDs are much higher than these of the 7200rpm HDDs parameters, therefore, prior to buying a 10000rpm HDD you should verify the compliance of the enclosure, power supply unit and the cooling with the technical requirements of this HDD.
Data buffer 128 MB
Data buffer is a high-speed memory built-in the HDD and allowing the disc to receive data at a smooth speed irrespective of the level of loading the physical memory of the disc at the particular time. If you work with a high number of small volume files (documents, photos, etc.) we recommend to buy an HDD with 8Mb or higher data buffer.
More detailed specification
Brand - WESTERN DIGITAL
Category - PC COMPON
Category 1 - Festplatten
Category 2 - Interne Festplatten
Category Code - HDS
Category_1 - Hard Drives and Pendrives
Category_2 - Internal Hard Drives - SATA - 3.5 inch
Certification Other features - BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL
CnCode - 84717050
Code - WD40EFZZ
Compliance certificates Other features - RoHS
Component for Features - NAS
Country of origin - CN
Depth Weight & dimensions - 147 mm
Description - Powerful internal HDDs designed for performance, reliability and power efficiency in small to medium NAS environments. WD Red Plus internal HDDs are designed to handle workloads for power users and small to medium business NAS environments. WD Red Plus drives deliver the speed and capacity required to store, protect and share growing amounts of data in mid-sized RAID-optimized NAS systems with increased power efficiency. Tuned for NAS with NASware™
Western Digital’s exclusive NASware™ technology fine tunes drive parameters to match NAS system workloads which helps increase performance and reliability. Designed for Continuous Operation
Since your NAS system is always on, a reliable drive is essential. WD Red Plus hard drives are designed for systems that operate 24x7, giving users the confidence of knowing they can reliably access their data. Tested for Dependable Compatibility
Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures. Optimized for Lower TCO
WD Red Plus drives are engineered to use less power (versus previous models) and run cooler, which reduces operating costs and helps reduce heat in thermally challenged NAS boxes. Powered for Strong Performance
Despite using less power, the drives have plenty of bandwidth to handle the mixed performance demands of multi-drive NAS systems. Balanced for Increased Reliability
Hard drives that are not properly balanced may cause excessive vibration and noise in multi-drive systems, which could reduce hard drive life span and degrade the performance over time. Our enhanced dual-plane balance control technology significantly improves balance and increases overall drive performance and reliability. Backed by World-Class Support and Warranty
As an industry-leading hard drive manufacturer, Western Digital stands behind their NAS storage solutions with the assurance of a 3-year limited warranty and world-class support services for hassle free data storage. Desktop drives vs. WD Red® Plus
It is important to choose a drive purpose-built for RAID-optimized NAS systems to ensure optimum performance and preserve your valuable data. Take the following into consideration when choosing a hard drive for your NAS:
• Compatibility: Unlike desktop drives, WD Red Plus hard drives are specifically designed and tested for NAS and include NASware™ technology which fine tunes drive parameters to match NAS system workloads for optimum performance.
• Reliability: Desktop drives aren’t typically designed for the demands of an always-on NAS environment. WD Red Plus hard drives are designed to perform under tough conditions encountered in high-intensity 24x7 multi-user NAS environments.
• RAID Ready: WD Red hard drives are engineered with RAID error recovery control to help reduce failures within multi-bay NAS systems, unlike most desktop drives that are configured for generic use.
• Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red hard drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration often found in multi-bay NAS systems.
Description - WD 4TB RED PLUS 128MB SATAIII 28 MB 3.5
dimensionalWeight - 82
EAN -
EAN - 0718037905754
EAN_code - 0718037905754
Features - Component for - NAS
Features - HDD capacity - 4 TB
Features - HDD size - 3.5"
Features - HDD speed - 5400 RPM
Features - Interface - Serial ATA
Features - Mean time between failures (MTBF) - 1000000 h
Features - Storage drive buffer size - 128 MB
Features - Type - HDD
Features - Workload rate limit - 180 TB/year
Gross weight - 0.6
Gross Weight Kg - 0,65
HDD average transfer rate Features - 180 MB/s
HDD capacity Features - 4 TB
HDD Family name - Red Plus
HDD size Features - 3.5"
HDD speed Features - 5400 RPM
height - 0.04
Height Weight & dimensions - 26.1 mm
Hot-swap Features - No
Interface Features - Serial ATA III
length - 0.16
Manufacturer - Western Digital
Manufacturer Code - WD40EFZZ
Manufacturer Name - Western Digital
Manufacturer_code - WD40EFZZ
Model - WD40EFZZ
MPN - WD40EFZZ
Name - 4TB WD WD40EFZZ Red Plus 5400RPM 128MB
Name - Western Digital Red Plus NAS hard drive 4 TB (SATA 6 Gb/s, 3.5", 24/7)
Operating temperature (T-T) Operational conditions - 0 - 65 °C
Operational conditions - Operating temperature (T-T) - 0 - 65 °C
Operational conditions - Storage temperature (T-T) - -40 - 70 °C
Other features - Compliance certificates - BSMI
Other features - Compliance certificates - CE
Other features - Compliance certificates - Federal Communications Commission (FCC)
Other features - Compliance certificates - ICES-003
Other features - Compliance certificates - KC
Other features - Compliance certificates - RCM
Other features - Compliance certificates - UKCA
Other features - Compliance certificates - UL
Other features - Compliance certificates - VCCI
producerCode - WD40EFZZ
productName - WD Red Plus WD40EFZZ HDD (4 TB; 3.5"; 128 MB; 5400 rpm)
productSize - Normal
Quantity per pack Packaging data - 1 pc(s)
Safety warning - Warnings - Do not drop and avoid strong impacts.
Safety warning - Warnings - Do not expose to high temperatures or moisture.
Safety warning - Warnings - Do not open or disassemble.
Short description - WD HD3.5" SATA3 4TB WD40EFZZ / 24x7 / NAS (Di)
sizeX - 145
sizeY - 27
sizeZ - 105
Storage drive buffer size Features - 128 MB
Storage temperature (T-T) Operational conditions - -40 - 70 °C
Subcategory - HDD
Summary - Western Digital Red Plus WD40EFZZ. HDD capacity: 4 TB, HDD speed: 5400 RPM, Storage drive buffer size: 128 MB, HDD size: 3.5", Interface: Serial ATA III
Tariff No. - 84717050
Type Features - HDD
Unit Box Height - 0.03
Unit Box Length - 0.15
Unit Box Width - 0.1
Unit Calculated Volume - 0.00045 cubm
Unit Calculated Weight - 0.3 kg
Units per Pallet - 0
Units per Shipping Box - 1
Vendor Homepage - https://www.westerndigital.com/products/internal-drives/wd-red-plus-sata-3-5-hdd?sku=WD40EFPX
Warranty -
Warranty - 36L months
warrantyLength - 36
warrantyType - G
Weight - 0,54
Weight - 0.648
weight - 550
Weight & dimensions - Depth - 147 mm
Weight & dimensions - Height - 26.1 mm
Weight & dimensions - Weight - 550 g
Weight & dimensions - Width - 101.6 mm
Weight Weight & dimensions - 550 g
width - 0.12
Width Weight & dimensions - 101.6 mm
191.34 €
Western Digital 4TB, 5400rpm, 128MB, SATAIII, Red Plus, CMR
Tālr. 67275758 gsm 26117175 (p.o.t.c.p. 9:00-18:00)
Intel technology provider Platinum 2020
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