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Western Digital WD40EFRX Red IntelliPower 4TB 3.5 Inch Hard Drive

MPN: WD40EFRX | SKU: JH5464
Regular Price: $167.27
Price: $122.89
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  • Specifically designed for use in NAS systems with up to 8 bays
  • Tested for 24x7 reliability
  • NASware firmware for compatibility
  • 3-year limited warranty
  • Small and home office NAS systems in a 24x7 enviornment.RPM Class-5400
  • Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary.
  • Ships in WD-certified box for safe transit during shipping
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$122.89
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  • Key Selling Points

Key Selling Points

  • Specifically designed for use in NAS systems with up to 8 bays
  • Tested for 24x7 reliability
  • NASware firmware for compatibility
  • 3-year limited warranty
  • Small and home office NAS systems in a 24x7 enviornment.RPM Class-5400
  • Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary.
  • Ships in WD-certified box for safe transit during shipping
  • Description
  • Product Details
  • Customer Reviews
  • Q&A

Description

Western Digital WD40EFRX Red 4TB 3.5" 5900RPM Internal Hard Drive. The WD Red 4TB Hard Drive is optimized for NAS systems and built to withstand the rigors of 24/7 operation. If you need 4TB of network accessible space, this NAS-ready continuous operation hard drive offers high capacity and unmatched reliability. Back up your files and access them from anywhere in your home or office quickly and efficiently when you use a NAS enclosure with this NAS-ready 4TB hard drive. The WD Red 4tb hard drive is a great drive for NAS and long-running drives. 4TB SATA 6Gbs 64MB Red Drive. SINGLE BULK PACK WD Red is designed specifically for NAS systems that have 1 to 5 drive bays in both 3.5-inch and 2.5-inch form factors. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS.

The WD40EFRX hard drive from Western Digital features 4TB of storage size in a 3.5" form factor. This drive connects to your system via the SATA 6 Gb/s interface so make sure you have an available port on your compatible motherboard. Advanced features of this HDD include a 64MB cache/buffer and 5400 rotational spin rate.

  • 4TB Hard Drive Capacity
  • 3.5" Desktop Form Factor
  • SATA 3 Interface
  • Designed for Network Attached Storage

Western Digital WD40EFRX

Interface
SATA 6 Gb/s
Rotational Speed
IntelliPower
Buffer Size
64 MB
Transfer Rate
Buffer To Host (Serial ATA): 6 Gb/s (Max)
Formatted Capacity
4,000,787 MB
Capacity
4 TB
Form Factor
3.5 Inch
User Sectors Per Drive
7,814,037,168
MTBF
1,000,000 hours
Dimensions
Height: 1.028 Inches
Depth: 5.787 Inches
Width: 4.00 Inches
Weight: 1.50 Pounds
Shock
Operating Shock (Read): 65G, 2 ms
Non-operating Shock: 250G, 2 ms
Acoustics
Idle Mode: 25 dBA (average)
Seek Mode: 28 dBA (average)
Temperature
Operating: -0 Degrees C to 70 Degrees C
Non-operating: -40 Degrees C to 70 Degrees C
Humidity
Operating: 5-95% RH non-condensing
Vibration
Operating: 0.004 g^2/Hz (10 to 300 Hz)
Non-operating: 0.05 g^2/Hz (10 to 300 Hz)
Operating Linear: 20-300 Hz, 0.75G (0 to peak)
Current Requirements - 12VDC
Read/Write: 250 mA
Idle: 230 mA
Standby: 7 mA
Sleep: 7 mA
Current Requirements - 5VDC
Read/Write: 280 mA
Idle: 260 mA
Standby: 105 mA
Sleep: 105 mA
Power Dissipation
Read/Write: 4.50 Watts
Idle: 3.30 Watts
Standby: 0.40 Watts
Sleep: 0.40 Watts
  • Specifically designed for use in NAS systems with up to 8 bays
  • Tested for 24x7 reliability
  • NASware firmware for compatibility
  • 3-year limited warranty
  • Small and home office NAS systems in a 24x7 environment

PACKAGE INCLUDES:

  • Western Digital WD Red 4TB Desktop HDD


Brand: Western Digital

MPN: WD40EFRX

UPC: 718037810058

Compatibility: SATA 3

Packaging: OEM

Condition: New



Product Details

Manufacturer
WD
Classification
Red
MPN
WD40EFRX
Packaging
Bare Drive
Interface
SATA 6.0Gb/s
Size
4TB
RPM
5400 RPM
Cache
64MB
Features
WD Red is designed specifically for small NAS systems that have 1 to 8 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and for the demanding system requirements of home and small office NAS.

Storage for 1 to 8 bay NAS solutions - WD Red is designed specifically for NAS systems that have 1 to 8 drive bays in both 3.5-inch and 2.5-inch form factors.

NASware grows to 3.0 - WD Red now supports small NAS systems from 1 to 8 bays thanks to NASware 3.0, which further improves drive compatibility and reliability. At 48TB of total capacity in an 8-bay system, WD Red expands your NAS experience.

3D Active Balance Plus - Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. (EFRX models only)
Form Factor
3.5"
Height (maximum)
26.10 mm
Width (maximum)
101.60 mm
Length (maximum)
147.00 mm

Package Includes

Customer Reviews

Review Summary
4.5
Reviews
5
75.51% (37)
4
6.12% (3)
3
2.04% (1)
2
8.16% (4)
1
8.16% (4)
By Anni Heikkinen
Reliable and effective
I have two of these drives in an nas, that often functions as a media server and back up. They have been running for close to 4 years without any failure or loss of data
By Simon Fabre
Five stars
Great drive!
By Mae Morin
They work great for nas environment
They work great for nas environment. I use these all the time, not as fast as a western digital gold, which is what i use in my personal equipment. But for my clients that don't want to spend the money on those, they are the next best thing.
By Andree Seemann
Wd hard drive not 4 tb as labeled only 30gb available
I bought this external drive just over a year ago. It was on sale at the time, so i bought it even though i didn't need it just then. Today i tried to use it for the first time. It is supposed to be a 4tb drive that i use in a docking station for file backup. It only shows about 30 gb on the drive. I have repeatedly tried to initialize and format it but only 30gb available. It's useless to me. I have sd cards that are bigger.
By Charles Thompson
Five stars
Seem to be working well, wish i would have bought a bigger drives:)
By Hugh Rodriguez
I'm right now using two of these in my synology nas ...
I'm right now using two of these in my synology nas. It's been in use for the past two months straight and so far no issues!
By Tristan Garcia
Waste my
This hdd only last two weeks, waste my money
By Clara Tremblay
Perfect match for drobo 5c
Delivered in bulk packaging (i was expecting oem packaging considering the price). I bought it for my drobo 5c storage device, and being a nas drive, it's reasonably fast (for a 5400rpm drive) and very quiet which is a huge plus. I right now have three of these inside the drobo and it stays very quiet and cool to the touch (it sits on my desk and it's equally quiet as my 2013 macpro). If you have a nas device, you can't go wrong with this drive. If you need a single drive for your computer, go with wd black for higher speeds (being a 7200rpm dive). Red drives are intended for archive purposes, longevity and piece of mind in the long run - just what i needed. Will be buying two more.
By Beau Chen
They are fast and quiet and not a bad price at all
Bought 2 of these for my synology system, no complaints here! They are fast and quiet and not a bad price at all.
By Huberto Moraes
Good storage and reliable.
Good storage and reliable.

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WD40EFRX

Western Digital WD40EFRX Red IntelliPower 4TB 3.5 Inch Hard

Price: $122.89
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