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Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD40PURZ

4.6 4.6 out of 5 stars 13,273 ratings

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64 MB Cache
4TB

Purchase options and add-ons


About this item

  • Built for 24/7 surveillance
  • AllFrame technology for better performance
  • Designed to support up to 64 HD cameras
  • Engineered for compatibility
  • 3-year manufacturer's limited warranty

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Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD40PURZ
Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD40PURZ
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Price$89.99-20% $239.99
List:$298.99
-8% $146.50
List:$158.99
$99.99$98.99$84.99
Delivery
Get it as soon as Wednesday, Mar 27
Get it Mar 26 - 28
Get it as soon as Wednesday, Mar 27
Customer Ratings
Easy to install
4.6
4.6
4.7
4.7
4.7
Storage Capacity
4.6
4.3
4.6
4.6
4.7
Noise level
4.5
3.9
4.4
4.4
4.4
Value for money
4.4
3.7
3.6
3.6
4.3
Sold By
ALL4COMPUTERS - (SIGNATURE REQUIRED)
Ideabuy
Actiview CCTV
Real HD Store
TechnoDealsUSA
Amazon.com
storage capacity
4 TB
10 TB
6 TB
4 TB
4000 GB
4 TB
hardware interface
sata 6 0 gb
sata 6 0 gb
sata 6 0 gb
sata 6 0 gb
ata
ata
compatible devices
Camera
Server, Video Surveillance System, Storage System
Desktop
Desktop
Desktop
Camera
form factor
3.5-inch
3.5-inch
3.5-inch
3.5-inch
3.5-inch
3.5-inch
write speed
0
0
175
175
read speed
0 megabytes per second
175 megabytes per second
175 megabytes per second
210 megabytes per second

What's in the box

  • Hard Drive

  • From the manufacturer

    WD Purple Surveillance Hard Disk Drive

    Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 cameras, WD Purple drives are optimized for surveillance systems.

    AllFrame 4KTM Technology

    • Reduces frame loss
    • Improves video playback
    • Optimizes the HDD to thrive in high temperature, always-on, surveillance system environments

    Engineered for compatibility

    WD Purple surveillance hard drives are built for compatibility with chassis and chip set manufacturers for seamless integration into your new or existing video surveillance system.

    Optimized performance for up to 64 cameras

    With support for up to 64 surveillance cameras per hard drive, WD Purple gives you the flexibility to upgrade and expand your security system in the future.

    Surveillance storage for peace-of-mind

    WD Purple Surveillance hard drives are designed for high temperature, always-on, surveillance security systems to help ensure reliability and quality video play back when you need it most.

    Product information

    Technical Details

    Collapse all

    Additional Information

    Warranty & Support

    Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
    Product Warranty: For warranty information about this product, please click here. [PDF ]

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    Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD40PURZ


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    Product Description

    WD Purple drives are built for 24/7, always-on, high-definition security systems. WD Purple surveillance storage feature Western Digital’s exclusive AllFrame technology, so you can confidently create a security system tailored to the needs of your business. Using AllFrame technology, WD Purple drives improve video capturing and helps to reduce errors, pixelation, and video interruptions that could happen in a video recorder system. WD Purple drives have an enhanced workload rating that supports systems designed for 24x7 video recording with up to 64 cameras.

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    13,273 global ratings

    Customers say

    Customers like the computer drive for its security and value. They say it's an excellent hard drive for surveillance, and is recommended for video surveillance recorders. They also say it is a good solid drive for the money, and that it is easy to install. Customers also praise the drive for being renowned for its reliability and durability. They mention that it works perfectly and excels in every aspect.

    AI-generated from the text of customer reviews

    436 customers mention338 positive98 negative

    Customers like the quality of the hard drive. They say it works perfectly, excels in every aspect, and is easy to install. Some mention it's a perfect replacement and works great for a 1080x4 camera system.

    "Great quality drive for my surveillance needs." Read more

    "...I bought this one and it was $100 cheaper and worked flawlessly and instantly...." Read more

    "The Hard Drive works perfectly inside of my XmartO 10 Channel NVR. I simply didn't like the fact that it did not come with mounting screws...." Read more

    "...Research on drives had all kinds of answer for why these drives didn't work. The used ones had to be scrubbed completely clean for TiVo to format...." Read more

    142 customers mention142 positive0 negative

    Customers find the installation of the computer drive to be easy. They mention that it is a plug-and-play device that works on install with no issues. The drive is instantly recognized by the system and is trouble free to use.

    "Works great fast and easy to install." Read more

    "Good customer service. Easy to install" Read more

    "Quick and easy to installQuieter than original and has been working perfectly for over a year" Read more

    "Item was as described and has been working great. Easy to install." Read more

    86 customers mention81 positive5 negative

    Customers are satisfied with the value of the hard drive. They mention that it is a good solid drive for the money, and is the right size HDD at the right price.

    "The quality and the price was very good I would definitely buy again just keep the good price" Read more

    "...2 4Tb purple drives at a good price. Not impressed when they showed up in a paper mailer bag with just the anti-static bags...." Read more

    "good price" Read more

    "This was the right size HDD at the right price to add to my NVR for my home surveillance system...." Read more

    62 customers mention56 positive6 negative

    Customers are happy with the shipping of the hard drive. They mention that it was delivered extremely fast, and was packaged safely. They also say that it works great in their REOLINK NVR and is easy to install. Customers also say the access time is improved, and the read speeds are alright initially. They are happy that the drive started writing data immediately, and that the packaging was appropriate for an HDD.

    "...It is extremely fast when searching for past security footage...." Read more

    "Delivered Quickly, Packaged well, Great "5" year warranty with "5" star rating!!!!" Read more

    "...Hard Drive is a top choice that guarantees high-capacity storage, speed, and the durability necessary for security applications." Read more

    "...Speed is sufficient, 7200rpm models not needed for DVR`s. I purchased a used G-Technology G-DRIVE 3.5" external enclosure minus it`s hard drive...." Read more

    39 customers mention32 positive7 negative

    Customers like the durability of the computer drive. They say that the WD Purple series is renowned for its reliability, and this 4TB variant is no exception. They also say that it is well-made, quiet, and ensures their longevity. Customers also mention that there is no apparent loss of quality of the images on the drive, and that it seems intact. Overall, customers are satisfied with the durability and reliability of the product.

    "Extremely reliable for your security camera system. This drive runs cool and works when you need it to capture video...." Read more

    "...These drives hold up well in that environment...." Read more

    "...The WD Purple series is renowned for its reliability, and this 4TB variant is no exception...." Read more

    "...They have all been in service 24 hours a day with no failures...." Read more

    34 customers mention31 positive3 negative

    Customers are satisfied with the storage space provided by the hard drive. They mention that it has a good amount of storage, which allows for more efficient storage. Some say that the hard disc has lots of room and holds a whole lot of video. Overall, customers are happy with the performance and capacity of the drive.

    "...It added days of storage capacity." Read more

    "...Drive is larger capacity allows for more recording storage. Very pleased." Read more

    "...Surveillance Internal Hard Drive is a top choice that guarantees high-capacity storage, speed, and the durability necessary for security applications." Read more

    "This 6TB drive has allowed me to expand my storage capacity and has performed well so far...." Read more

    32 customers mention32 positive0 negative

    Customers like the security of the hard drive. They mention it's an excellent hard drive for surveillance, recommended for video surveillance recorders, and suitable for security cameras. The 1TB capacity is adequate for camera surveillance needs, and the drive is designed for security camera recording. It's pretty solid and should last longer than a regular hard drive, making it perfect for surveillance NVRs and DVRs.

    "...This results in smooth and uninterrupted recording and playback of surveillance footage, critical for security systems...." Read more

    "...This drive is designed for Security camera recording and should last longer than a regular system drive...." Read more

    "This product came perfectly secure in its package and worked as designed." Read more

    "1tb is adequate for camera surveillance needs. I was at 320 gb hard drive to begin with so it is more than adequate...." Read more

    59 customers mention35 positive24 negative

    Customers are mixed about the noise of the computer drive. Some mention that it's super quiet, fast, and has plenty of storage for their uses. However, others say that it makes an odd muted clunking sound over and over as the system.

    "...Perfect replacement! easy to switch and formatting was quick. So far, low noise and is working flawlessly." Read more

    "...After formatting and play the drive was very loud, but after 2 days it became very quite. Everything seems to be working perfect...." Read more

    "Quick and easy to installQuieter than original and has been working perfectly for over a year" Read more

    "Lorex system came with 1T. Upgraded to 2T with this. Just as quiet, if not quieter than the 1T. 5 min job to open the case and swap the drives...." Read more

    Which one to get?
    4 Stars
    Which one to get?
    Before reading any review read this: there is a key problem with the way this section is set up. For some reason it lists a very old (2014) model of this drive along with the same New Generation improved model. What makes that bad is that the user comments are both mixed together, so any problems with the original drive appear right on top of the list and may be misleading. It’s very important then to look at the tiny print at the top of each comment and see if the user is talking about the Old Generation style or the New Generation style. To be clear, I am talking about the improved New Generation style.If you are not already familiar with the difference between a general purpose hard drive and one designed for video security let me start with a very basic comparison. This comparison is very broad and not a textbook definition by any means.HOW IT WORKSComputers write and read their information to a hard drive in tiny chunks that are scattered randomly all over the disk, so the recording/playback heads are constantly jumping from place to place. Speed of access in a computer is extremely important. On the other hand video surveillance recorders write and read their information more like an old-fashioned tape recorder, pretty much just like what the cameras are seeing in real time. The recording/playback heads are only required to jump to another spot on the disk when you want to play back an event. So random-access search time is far less of a priority than the non-stop grunt work of recording dependably 24/7/365 without a hiccup. The two processes are entirely different job tasks.COMPARISON: BRAND A VS. BRAND BThere are two major brands of specialized video surveillance hard drives. My NVR is one of the most respected out there for users who have a lot of experience and they chose to use the other brand of hard drive. Kudos to them because many other video security manufacturers believe you’ll never know what’s inside so they install the cheapest no-name generic hard drive they can buy. I’ve been buying this brand of security system for years and have been very happy with it and when I wanted to increase my drive capacity from 2TB to 4TB I had no idea if switching to a WD brand drive would make any difference at all. Engineers told me that the two brands are not identical in their design philosophy, each brand considering certain design parameters to be the slightly better way to go.IS THERE A DIFFERENCEBecause the NVR software, firmware and other factors play at least as much of a role in performance as the hard drive I was looking to improve these things:1. Drive noise2. Drive heat3. Stuttering (when the image suddenly jumps or drops a few frames, usually on playback)I measured the operating temperature both drives in real-life use in identical conditions using a precision instrument. The original drive was operating at 97.7 F and the WD measured at 91.6 F. That 6 degree difference is significant but not substantial.Likewise I used a calibrated sound level meter for each drive. The original drive came in at 47 dBA. The WD was at 46.9 dBA, virtually identical.The last condition is more difficult to quantify because stuttering is sporadic, so in my opinion I would classify any differences in a typical use scenario as atypical, was I experiencing fewer or more instances of stuttering or about the same? I tried to make my comparison without prejudice for or against either brand because I really don’t care whose name is on it. I bought the WD primarily to double my recording capacity and hence the number of days it would record events. That being said in real-life everyday use I have to lean slightly toward the WD as having fewer instances of jumping, stuttering or frame dropping in my particular system and it does seem to handle a few second backspace more smoothly than the original drive. Maybe another way of putting it is that the WD seems to be playing nicer with the NVR’s software/firmware than the brand the manufacturer originally spec’d.WILL IT IMPROVE MY SECURITY SYSTEMThe short answer is not really. Any differences in operating temperature and noise level are too close to be significant and both brands are optimized for video security so abnormalities like stuttering are just that, and are not completely attributable to the hard drive. We can say categorically that the brand or type of hard drive you use will not improve the image resolution (picture quality) of your system.BOTTOM LINE SATISFACTIONAll things considered the WD is consistently a few bucks more than the other brand and I’m not a big fan of ever paying more if I don’t have to. So based on the few things I could measure and one that I could only perceive I have to say I do like this drive and I believe I made the right choice.
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