WD 4TB Purple 3.5" Surveillance Internal Retail Hard Drive (WD40PURX)

WD 4TB Purple 3.5" Surveillance Internal Retail Hard Drive (WD40PURX)

WD 4TB Purple 3.5" Surveillance Internal Retail Hard Drive (WD40PURX)

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Expected availability: 6-10 weeks

Product Highlights

  • 4TB Storage Capacity
  • 3.5" Form Factor
  • 6 Gb/s Data Transfer Rate
  • 64MB Cache
  • IntelliPower Rotational Speed
  • 300,000 Load/Unload Cycles
  • Surveillance Class Storage
  • Supports 32 HD Surveillance Cameras
  • 1 Million Hours MTBF
  • Windows and Mac Compatible
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Capacity: 4TB


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$0.00 Tax Collected Outside NY and NJ

You Pay: $139.99

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WD WDBGKN0040HNC overview

  • 1Description

The 4TB Purple 3.5" Surveillance Internal Retail Hard Drive (WD40PURX) from Western Digital is a 3.5" SATA drive with a data transfer rate of 6 Gb/s that is designed to withstand the stresses placed on it in a 24/7 surveillance system. With support for up to 32 high-definition surveillance cameras, this 4TB hard drive can hold a large amount of data and gives you the ability to easily upgrade and expand your security system.

A 64MB cache helps to ensure uninterrupted data transfers and the drive's 300,000 load/unload cycles, combined with its 1 million hours MTBF helps ensure the drive will have a strong operational life. This drive is compatible with both Windows and Macintosh operating systems and includes mounting screws.

Surveillance-Class Drive
WD Purple surveillance-class storage has been tested to be compatible in a wide-range of security systems. These drives are designed to replace standard desktop drives that were not designed for the 24/7 always-on, high-definition surveillance environment. Desktop drives are built to run for only short intervals and are not engineered to withstand high-temperature fluctuations and equipment vibrations found in a typical surveillance application.
Surveillance Storage
The WD Purple Surveillance Hard Drive is designed for high temperature, always-on, surveillance security systems to ensure reliability and quality video play back when you need it most.
Improve Performance with AllFrame
This WD Purple Surveillance-class hard drive is equipped with AllFrame technology which works with ATA streaming to reduce frame loss, improve playback and increase the number of drive bays supported. AllFrame reduces video interruptions that commonly occur when desktop hard drives are incorrectly used as storage in security systems. Missed frames and lost footage can be a problem when an event occurs and surveillance footage needs to be retrieved. WD Purple with AllFrame provides the confidence you should expect when it's time to play back and review critical surveillance footage.
Optimized Performance for Up to 32 Cameras
With support for up to 32 high-definition surveillance cameras, this WD Purple hard drive gives you the flexibility to upgrade and expand your security system in the future.
IntelliPower Rotational Speed
In terms of speed, this drive operates using WD's IntelliPower rotational speed. This means that the rpm speed of the drive depends on the operations being performed. If the drive is performing mostly sequential reads and writes, its speed will be increased as compared to if it were performing mostly random mode operations. This 6TB drive also features a 64MB cache helps ensure uninterrupted data transfers.
Low Power Consumption
With integrated IntelliSeek technology, this WD Purple drive calculates the optimum seek speed which lowers power consumption, noise and vibration that can damage and cause drives to wear out more quickly.
Windows and Mac Compatible
Compatible with Windows 8, 7, Vista, and XP
Compatible with Mac OS X Mountain Lion, Lion, and Snow Leopard

Please bear in mind that Windows XP does not support drives with capacities greater than 2TB. Compatibility may vary depending on user's hardware configuration and operating system
1 million hours MTBF
1 million hours mean time between drive failures
UPC: 718037828725
In the Box
WD 4TB Purple 3.5" Surveillance Internal Retail Hard Drive (WD40PURX)
  • Mounting Screws
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description

    WD WDBGKN0040HNC specs

    Drive Capacity 4.0 TB
    Cache Memory 64 MB
    Interface SATA III (6 Gb/s)
    Sequential Read Speed 150 MB/s
    Sequential Write Speed 150 MB/s
    Drive Type HDD
    Form Factor 3.5"
    Noise Level 26.0 dB (Active)
    25.0 dB (Idle)
    HDD Specs
    Spindle Speed (RPM) 5400 - 5900 RPM
    Reliability / Data Integrity
    Load/Unload Cycles 300,000
    Non-Recoverable Read Errors per Bits Read < 10 in 1014
    Power Draw 5.1 W (Active)
    4.5 W (Idle)
    0.5 W (Standby)
    Operating Shock 30 G / 2.0 ms
    Storage Shock 250 G / 2.0 ms
    Operating Temperature 0 to 149°F / 0 to 65°C
    Storage Temperature -40 to 158°F / -40 to 70°C
    Certifications RoHS, as per Manufacturer
    Dimensions (W x H x D) 1.0 x 4.0 x 5.8" / 26.1 x 101.6 x 147.0 mm
    Weight 1.5 lb / 0.7 kg
    Packaging Info
    Package Weight 1.8 lb
    Box Dimensions (LxWxH) 7.5 x 5.0 x 3.5"

    WD WDBGKN0040HNC reviews

    4TB Purple 3.5" Surveillance Internal Retail Hard Drive (WD40PURX) is rated 4.9 out of 5 by 10.
    Rated 5 out of 5 by from Great Choice for Lorex Surveillance NVR The drive was immediately recognized by the Lorex NVR, formatting took about 4 minutes, and the drive was online a few seconds after that. I wanted to extend service life of the existing 2TB drive that came with the NVR so the recorder has two drives now (2TB+4TB, both WD). Our NVR has two drive bays and the drive arrived with mounting screws so the upgrade was a breeze. While one drive records, the other one can spin down and sleep, and this is precisely what I wanted to accomplish. This WD drive is so quiet that at first I thought it was not running, but it is. Awesome! Highly recommended.
    Date published: 2017-09-25
    Rated 5 out of 5 by from BEST hard drives! I use ONLY these drives in CCTV recorders. Rated for the constant 24/7/365 use, these drives are the BEST! I ordered 10 and got them QUICK! Total cost was less than I could have gotten them locally at an electronic retailer, but of course they didn't have any in any of their 5 Los Angeles locations!!!! B&H Photo is the BEST!!!!
    Date published: 2015-04-26
    Rated 4 out of 5 by from No issues I put two of these hard drives into a Raid 1 array for surveillance recording. I've had no issues at all. Durability is obviously the most important factor when looking at a drive ... and it's hard to really say since I haven't had these for too long ... but they're working great.
    Date published: 2015-02-28
    Rated 5 out of 5 by from Solid, Reilable Hard Drive I purchased one of these to upgrade the storage in my Drobo and have some additional WD Surveillance drives of a smaller capacity in my Drobo. These are solid, reliable hard drives powering my Drobo, and they're built for the most challenging circumstances.
    Date published: 2018-07-16
    Rated 5 out of 5 by from 4TB WD Purple Surveillance Hard Drives work great. Would re Replaced single 3TB drive in a Q-See NVR with four 4TB drives. Installed without a hitch and came up on the screen when I booted up the NVR. Has been working perfectly since installation and has extended my storage time dramatically.
    Date published: 2017-04-28
    Rated 5 out of 5 by from Good buy Used as a secondary drive in a Lorex camera system after primary drive had filled. Installed for a couple weeks now and no issues - working great. Primary drive is full so all writes are going to this drive.
    Date published: 2017-03-02
    Rated 5 out of 5 by from Works as expected replaced a 2TB to increase continuous recording time-seems to be working great so far.
    Date published: 2017-03-28
    Rated 5 out of 5 by from Great CCTV Hard Drives I purchased many of these for Hikvision NVR's and they work perfect ever time.
    Date published: 2016-01-04
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