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WD 4TB Se 64MB 3.5IN SATA 6GB/S 7200RPM Hard Drive

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£245.32 (ex VAT £204.43)

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WD 4TB Se 64MB 3.5IN SATA 6GB/S 7200RPM Hard Drive WD4000F9YZ

WD - WD4000F9YZ

£245.32 (ex VAT £204.43)

£ Finance from £11.98 per month - Details >

Request Stock Alert

Currently Not Available

Part No: WD4000F9YZ Stock Code: 6229021

WD 4TB Se 64MB 3.5IN SATA 6GB/S 7200RPM Hard Drive

  • Cost effective enterprise-class storage
  • 24x7x365 reliability
  • High capacity for hyperscale environments
  • Disk Utilities and Migration Tools
  • WD4000F9YZ

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WD Se datacenter capacity storage is an ideal solution for scale-out datacenters, delivering a cost-effective combination of performance, capacity, and workload capability, while maintaining the hardiness of a true enterprise-class design. WD Se is best suited for bulk cloud storage, distributed file systems, replicated environments, cost-efficient RAID architectures and content delivery networks (CDNs).


Cost effective enterprise-class storage.

Get the right blend of performance, workload capability and capacity and keep your total cost of ownership low.


24x7x365 reliability.

Choose the storage foundation specifically designed for large-scale datacenter replication environments running 24x7x365.


High capacity for hyperscale environments.

Build a massive data footprint with capacities up to 6 TB - 216 TB per square foot.


Disk Utilities and Migration Tools

Acronis True Image WD Edition can clone drives, backup your operating system, applications, settings and all of your data, while also having the ability to securely wipe any data you no longer need. You can quickly and easily deploy a new hard drive to your PC or laptop and automatically migrate your operating system, applications, and all of your important data, including images, music, and documents.

Designed for quality and reliability.

Datacenter drives undergo at least 5 million hours of functional testing, and over 20 million hours of comprehensive Interoperability testing in an extensive array of server and storage systems. Please see the product AVL list on our website for more information.

Dual processor

Twice the processing power to maximize performance.

Dual actuator technology

A head positioning system with two actuators that improves positional accuracy over the data track(s). The primary actuator provides coarse displacement using conventional electromagnetic actuator principles. The secondary actuator uses piezoelectric motion to fine tune the head positioning to a higher degree of accuracy. (2 TB and above)


The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking during read and write operations. (2 TB and above)

Multi-axis shock sensor

Automatically detects the subtlest shock events and compensates to protect the data.

Vibration Protection

Enhanced RAFF™ technology includes sophisticated electronics to monitor the drive and correct both linear and rotational vibration in real time. The result is a significant performance improvement in high vibration environments over the previous generation of drives.

RAID-specific, time-limited error recovery (TLER)

Prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.

Thermal extended burn-in test

Each drive is put through extended burn-in testing with thermal cycling to ensure reliable operation.

Dynamic fly height technology

Each read-write head's fly height is adjusted in real time for optimum reliability.

NoTouch™ ramp load technology

The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.

Environmentally responsible.

In addition to being RoHS compliant, these drives are built with halogen reduced components.

The WD advantage.

WD puts our datacenter products through extensive Functional Integrity Testing (F.I.T) prior to any product launch. This testing ensures our products consistently meet the high quality and reliability standards of the WD brand. Following a FIT test the Enterprise System Group (ESG) testing validates interoperability with HBAs, operating systems and drivers to ensure an even greater level of quality, reliability and peace of mind.

WD also has a detailed Knowledge Base with helpful articles and software utilities. Our customer support lines have longer operational hours to ensure you get the help you need when you need it. Our toll-free customer support lines are here to help or you can access our WD Support site for additional details.

From the Manufacturer

Product Reviews

9.2 out of 10
Overall rating
Value for money
10 out of 10

James IT Professional

Confirmed Purchase: 20 February 2015

Published Purchase: 05 March 2015

+ Reviewer left no comment
- Expensive compared to the RedPro which is a very similar drive
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9 out of 10

Amit IT Professional

Confirmed Purchase: 01 March 2014

Published Purchase: 25 March 2014

+ Performance is much better than the WD RED HDDs
- Reviewer left no comment
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10 out of 10

Richard IT Professional

Confirmed Purchase: 16 January 2014

Published Purchase: 28 January 2014

+ Recently purchased 12 of these for use in a Synology NAS box in RAID6 configuration, running like a dream for a few weeks although prior to this have been using the drives in file server for almost 6 months without issue. Impressive speed and good price per MB. Tried and trusted WD Enterprise grade 5 year HDDs. You just can't go wrong with these and wouldn't consider using anything else in a RAID array for the cost conscious.
- none so far
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9 out of 10


Confirmed Purchase: 22 October 2013

Published Purchase: 04 November 2013

+ So far so good. 4TB with little noise and works great in my Synology NAS.
- Price.
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8 out of 10

IT Professional

Confirmed Purchase: 02 July 2013

Published Purchase: 18 July 2013

+ Good capacity, so far it has been reliable but it's extremely early days!
- None
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10 out of 10

tom Heavy media user

Confirmed Purchase: 28 January 2014

Published Purchase: 14 February 2014

+ Reviewer left no comment
- Reviewer left no comment
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10 out of 10


Confirmed Purchase: 20 November 2013

Published Purchase: 01 December 2013

+ Reviewer left no comment
- Reviewer left no comment
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8 out of 10

Daniel IT Professional

Confirmed Purchase: 03 July 2013

Published Purchase: 24 July 2013

+ Reviewer left no comment
- Reviewer left no comment
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