190

Western Digital Red 4 TB Internal HDD

Mfg. Part: WD40EFRX | CDW Part: 3123305 | UNSPSC: 43201803
$154.99Advertised Price
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Availability:In Stock
Ships same day if ordered before 4 PM CT
38
  • Hard drive
  • 4 TB
  • internal
  • 3.5"
  • SATA 6Gb/s
  • buffer: 64 MB
  • for My Cloud EX2; EX4
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Recommended Warranty

Product Overview
Main Features
  • Hard drive
  • 4 TB
  • internal
  • 3.5"
  • SATA 6Gb/s
  • buffer: 64 MB
  • for My Cloud EX2; EX4
WD's exclusive NASware technology, built into every WD Red hard drive, improves NAS storage performance by reducing common hard drive concerns in NAS systems including concerns for things like compatibility, integration, upgradeability, reliability and cost of ownership that are experienced with a hard drive designed for desktop computers.

Technical Specifications
Specifications are provided by the manufacturer. Refer to the manufacturer for an explanation of the print speed and other ratings.
Bay Required
Form Factor: 3.5" x 1/3H
Form Factor (metric): 8.9 cm x 1/3H
Total Qty: 1
Type: Internal

Environmental Parameters
Max Operating Temperature: 149 °F
Min Operating Temperature: 32 °F
Shock Tolerance Operating: 65 G @ 2 ms
Shock Tolerance Storage: 250 G @ 2 ms
Sound Emission: 25 dBA

Header
Brand: WD
Compatibility: Mac , PC
Manufacturer: Western Digital
Model: WD40EFRX
Packaged Quantity: 1
Product Line: WD Red NAS Hard Drive

Interface Provided
Connector Type: 7 pin Serial ATA
Qty: 1
Storage Interface: Serial ATA-600

Miscellaneous
Compliant Standards: RoHS
MTBF: 1,000,000 hour(s)

Service
Support Details Full Contract Period: 3 years
Support Details Type: Limited warranty

Storage
Type: Hard drive

Storage Hard Drive
Capacity: 4 TB
Features: 3D Active Balance Plus , Advanced Format technology , IntelliPower , NAS compatible , NASware technology , Native Command Queuing (NCQ)

Dimensions & Weight
Depth: 5.8 in
Height: 1 in
Weight: 23.98 oz
Width: 4 in

Service & Support
Type: 3 years warranty

Hard Drive
Buffer Size: 64 MB
Compliant Standards: S.M.A.R.T.
Data Transfer Rate: 600 MBps
Form Factor: 3.5" x 1/3H
Form Factor (metric): 8.9 cm x 1/3H
Form Factor (Short): 3.5"
Form Factor (Short) (metric): 8.9 cm
Hard Drive Type: Internal hard drive
Interface: Serial ATA-600
Internal Data Rate: 150 MBps
Load Unload Cycles: 600,000
Non-Recoverable Errors: 1 per 10^14
Spindle Speed: 5400 rpm
Storage Interface: Serial ATA-600

Power Consumption
Mode: Read
Value: 4.5 Watt



Mode: Write



Mode: Idle
Value: 3.3 Watt



Mode: Sleep
Value: 0.4 Watt

Product Reviews
Rated 4.9 out of 5 by 11reviewers.
Rated 5 out of 5 by Good reliable drives I've never had one of these drives fail on me. I most often use them in large RAID configs in our NAS hardware. August 25, 2016
Rated 5 out of 5 by They work like they should These plug in and worked just fine, no failed drive and no DOA, of course a drive can always fail but these are good February 10, 2016
Rated 5 out of 5 by Great Drive for NAS We use the WD Red drives in all of our NAS deployments. Drives have been extremely reliable. January 27, 2016
Rated 5 out of 5 by Good drive Expansive drive, but it worth it.Great drive. I would recommended. January 13, 2016
Rated 5 out of 5 by AWESOME PRODUCT We have been updating our back up systems and are using these drives in our NAZ Box! Great choice! December 16, 2015
Rated 5 out of 5 by Great drives Nice and not too expensive 4TB drive. Used for QNAP June 3, 2015
Rated 5 out of 5 by Very reliable drive After burning through several different makes and models of drives for our NAS systems, we finally settled on these Red drives, and thus far I have had a zero failure rate. February 11, 2015
Rated 5 out of 5 by This product is a great value I bought 4 of these to put into a NAS for backup. Installation was a breeze. All 4 worked perfectly and have been reliable. The price is great for 4TB of storage space. January 28, 2015
  • 2016-10-30 T09:45:29.982-05:00
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12/10/2016 8:26:50 PM
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