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Western Digital Red 4TB WD40EFAX

Part number: WD40EFAX
EAN: 0718037861036
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> 4 TB 3.5" 5400 RPM Serial ATA III

> NAS HDD

> Storage drive buffer size: 256 MB

> 6 Gbit/s

> 20.1 oz (570 g)

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Description

Western Digital Red 3.5" 4000 GB Serial ATA III

There’s a WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 14TB, WD Red offers a wide array of solutions for customers looking to build a high performing NAS storage solution. Built for single-bay to 8-bay NAS systems, WD Red packs the power to store your precious data in one powerhouse unit. With WD Red, you’re ready for what’s next.

Western Digital WD40EFAX
Western Digital WD40EFAX

The drive for NAS

Desktop drives aren’t typically tested or designed for the rigors of a NAS system. Do right by your NAS and choose the drive with an array of features to help preserve your data and maintain optimum performance.

Built for NAS Compatibility

WD Red drives with NASware 3.0 technology are purpose-built to balance performance and reliability in NAS and RAID environments.

Keep it Cool

The always-on environment of a NAS or RAID is a hot one. WD Red drives are engineered to run cool and quiet while offering optimum compatibility for demanding 24x7 environments.

WD Red For Home

Stream, backup, organize and effortlessly share your digital content to your TV, PC and more. NASware technology increases your drives' compatibility with your NAS system, for better playback with your devices.

WD Red For Small Business

Businesses thrive on productivity and efficiency, two guiding principles built into the design of the WD Red drive. Share and backup files at the speed of your business with a WD Red drive in your NAS.

Designed For NAS

Desktop drives aren't purpose-built for NAS. But WD Red drives with NASware 3.0 are. Our exclusive technology takes the guesswork out of selecting a drive. We can help you find the perfect storage for your NAS system.

3D Active Balance Plus

Helps to ensure your data is protected from excessive vibration and noise in a NAS or RAID environment. This dual-plane balance control maintains your drive’s performance over time.

24/7 Environment

Since your NAS system is always on, a reliable drive is essential. Desktop drives are not typically designed and tested in 24x7 conditions, which is a foundation of WD Red NAS hard drives.

Exclusive Technology

Seamless integration, robust data protection and optimal performance for NAS systems under heavy demand.

Multimedia

Specifications

Features
Mean time between failures (MTBF) 
1000000 h
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Component for 
NAS SOHO
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Type 
HDD
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HDD capacity 
4000 GB
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Storage drive buffer size 
256 MB
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HDD interface transfer rate 
6 Gbit/s
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HDD sustained transfer rate 
180 Mbyte/s
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Interface 
Serial ATA III
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HDD speed 
5400
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Advanced Format (AF) 
Yes
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24/7 operation 
Yes
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Hot-swap 
No
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HDD size 
3.5
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Noise level (idle) 
23.0000
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Start/stop cycles 
600000
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Native Command Queuing (NCQ) 
Yes
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Workload rate limit 
180 TB/year
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Packaging data
Storage drive adapter included 
No
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Quantity 
1
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Quantity per pack 
1.0000
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Operational conditions
Storage temperature (T-T) 
-40 - 70
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Operating shock 
65 G
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Non-operating shock 
250 G
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Operating temperature (T-T) 
0 - 60
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Sustainability
Sustainability certificates 
RoHS
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Packaging content
Storage drive adapter included 
No
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Technical details
Compliance certificates 
RoHS
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Sustainability certificates 
RoHS
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Power
Power consumption (read) 
4.8000
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Power consumption (write) 
4.8000
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Power consumption (standby) 
0.4000
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Power consumption (idle) 
3.1000
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Operating voltage 
5 / 12 V
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Start-up current 
1.7500
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Weight & dimensions
Depth 
147 mm
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Width 
101.6 mm
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Height 
26.1 mm
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Weight 
570 g
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Other features
Compliance certificates 
RoHS
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Logistics data
Harmonized System (HS) code 
84717050
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Basic Data
Series 
Red
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SKU: 1035115
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