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WD Red Plus WD40EFZZ 4 TB
128/5400

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WD Red Plus WD40EFZZ 4 TB
128/5400
Main
Placementbuilt-in
TypeHDD
Featuresserver
Volume4 TB
Form factor3.5 "
ConnectionSATA3
Manufacturer's warranty3 years
Technical specs
Cache memory128 MB
Record technologyCMR
RPM5400 rpm
Data transfer rate180 MB/s
Operation power consumption4.5 W
Standby power consumption2.9 W
Reading noise level27 dB
Standby mode noise level24 dB
MTBF1 M h
MTBF (on/off)600 K
Features
Featuresfor video surveillance
General
Size147x102x26 mm
Weight550 g
Official Websitewesterndigital.com
Added to E-CatalogApril 2026
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.
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128/5400

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Western Digital Red Plus 4TB WD40EFZZ WD40EFZZ

Western Digital Red Plus WD40EFZZ. HDD capacity: 4 TB, HDD speed: 5400 RPM, Storage drive buffer size: 128 MB, HDD size: 3.5"... more, Interface: Serial ATA III...
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WD Red Plus 4TB NAS 35" Internal Hard Drive - 5400 RPM SATA 6Gb/s CMR 128MB Cache WD40EFZZ-SPCPAN0

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Western Digital 4TB Red Plus NAS 3.5" SATA HDD / Hard Drive 5400rpm

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Western Digital Red Plus WD40EFZZ internal hard drive 4 TB 5400 RPM 128 MB 3.5" Serial ATA III

4 TB 3.5" 5400 RPM Serial ATA III. NAS HDD. Storage drive buffer size: 128 MB. 550 g. Powerful internal HDDs designed for per... moreformance, 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
Backtotheoffice.co.uk
Delivery: in United Kingdom
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Western Digital Red Plus WD40EFZZ internal hard drive 4 TB 5400 RPM 12

Western Digital Red Plus WD40EFZZ internal hard drive 4 TB 5400 RPM 128 MB 3.5" Serial ATA III Powerful internal HDDs designe... mored 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 OperationSince 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 CompatibilityWestern Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.Optimized for Lower TCOWD 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 PerformanceDespite using less power. the drives have plenty of bandwidth to handle the mixed performance demands of multi-drive NAS systems.Balanced for Increased ReliabilityHard 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 WarrantyAs 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® PlusIt 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
Pcnova.co.uk
Delivery: in United Kingdom
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Western Digital Red Plus WD40EFZZ internal hard drive 4 TB 5400 RPM 12

Powerful internal HDDs designed for performance. reliability and power efficiency in small to medium NAS environments.WD Red... morePlus 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 OperationSince 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 CompatibilityWestern Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.Optimized for Lower TCOWD 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 PerformanceDespite using less power. the drives have plenty of bandwidth to handle the mixed performance demands of multi-drive NAS systems.Balanced for Increased ReliabilityHard 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 WarrantyAs 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® PlusIt 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
Gamingkit.co.uk
Delivery: in United Kingdom
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£209.08

Western Digital Red Plus WD40EFZZ internal hard drive 4 TB 5400 RPM 128 MB 3.5" Serial ATA III

Powerful internal HDDs designed for performance reliability and power efficiency in small to medium NAS environments. WD R... moreed 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 Digitals 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 arent 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
Quzo.co.uk
Delivery: to United Kingdom
Report
£300.91
I recommend taking it, especially if backup operation or moderate noise level is important.
26 October 2025 
The drive is a pretty good compromise in terms of speed/noise/power consumption. It's quiet in operation, but there's an annoying thud every few seconds, and this thud isn't absorbed by the PC case, but I don't know of any better options. Unfortunately, switching to 4kn mode is quite complicated (WD Hugo). It's worth considering, except in cases where you really need speeds over 200MB/sec or power consumption in standby mode (when the drive isn't spinning) - you should look at other models. I will also buy the same or a similar one from the Pro series as soon as they are available at a good price.
Relatively low power consumption and noise, helium, adequate starting currents
No logical sector change mode like in Pro versions
Volodimiruse WD WD120EFBX few months
Do not purchase
3 December 2024 
I bought a 4 TB WD hard drive from Rozetka. It worked for a while and started beeping, knocking and grinding. It didn't read, didn't write and froze. The test program gave a million errors and hundreds of used sectors. I took it under warranty. They sent it to the service center. And from there they called and said it's WORKING We're sending it back to you I read a lot of reviews about Rozetka - I'm not the only one, there are thousands of cases And I realized that they don't care about reputation, the main thing is money And then they send the client away. I don't advise anyone to buy anything expensive from Rozetka. If a warranty case occurs, they'll just send you after the Russian ship
Volume
Unreliable
Andrey use WD WD40EFPX more than year
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WD Red Plus WD40EFZZ configurations

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