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Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD20PURZ

  • Based on 7,498 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Apr 26
Order within 17 hours and 7 minutes
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Capacity: 2TB


Features

  • 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

Description

Capacity:2TB 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.


Hard Drive: ‎2 TB Mechanical Hard Disk


Wireless Type: ‎Radio Frequency


Number of USB 2.0 Ports: ‎1


Brand: ‎Western Digital


Series: ‎WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64M


Item model number: ‎WD20PURZ


Operating System: ‎Windows/Mac


Item Weight: ‎1.32 pounds


Product Dimensions: ‎5.79 x 4 x 1.03 inches


Item Dimensions LxWxH: ‎5.79 x 4 x 1.03 inches


Color: ‎Purple


Flash Memory Size: ‎2 TB


Hard Drive Interface: ‎Serial ATA


Hard Drive Rotational Speed: ‎5400 RPM


Manufacturer: ‎Western Digital Bare Drives


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎April 7, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Apr 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Not Happy
Capacity: 2TB
WD makes a great product but beware of getting this from "We Love TEC" It arrived with an open package like it was previously installed and zero packing or support. Simply flopping all over the place during transit. Hard drives are a very fragile thing. Utterly ridiculous!!
Reviewed in the United States on December 24, 2019 by Joe Myers

  • Which one to get?
Capacity: 4TB
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 WORKS Computers 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 B There 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 DIFFERENCE Because 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 noise 2. Drive heat 3. 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 SYSTEM The 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 SATISFACTION All 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. ... show more
Reviewed in the United States on September 25, 2017 by PhotoGraphics

  • Not really a video hard drive if it doesn't support ATA-8 streaming commands
Capacity: 8TB
So Western digital representatives have told me over and over their video drives are great because of their endurance features. And while I'm sure those are fine, they are blurring the lines in the homes you don't notice they aren't really video hards drives, because they don't support the ata-8 standards. They do respond to the ata-8 read requests, but when the drive starts to have read errors, rather than obey ata-8 and deliver the stream with a time priority, they stall the stream as they retry error correction over and over. The ATA-8 Streaming command set is designed so a host system to request data within a specific window of time. It places a priority on a time to transfer the data, rather than the integrity of the data. This is important for video drives in DVR's. Other manufacturers combine video and surveillance features, and the drives are good in DVR's OR NVR's. However western digital will tell you that your equipment isn't compatible with the drive. Seagate, HGST and Samsung all make video drives that properly implement the ATA-8 standard. By insisting to me that this is a video hard drive, rather than admitting it really isn't, is wasting all of our time and money. I purchased the 8tb drive on April 16th, 2020. It has a Feb 16 2020 manufacturing date. It started freezing the DVR within a month, and on June 28th the DVR just started rebooting every hour or so. It is 20% full, haven't had it long enough to ever fill it with data. The house is between 68 and 72 at all times, and the fan of the DVR has direct access to room temperature air. The drive runs warm, but Western Digital's rep just got finished telling me how good this drive is in hot environments, and that it has no limits to how much heat it can handle. I asked the rep if this was an actual video drive, and before I finished explaining what I meant by that, he launched into a memorized sales-pitch where phrases like "withstanding unlimited heat", and emphasized the durability of the drive. It is very clear that they spend a lot of time defending the purple drives, and are very good at extolling their virtues. I have no doubt everything he said was true, I know and trust WD hard drives, in my day job I build massive SAN systems entirely based on WD hard drives. I love the brand, but their video drives are for surveillance and normal data use ONLY. They are not good for your directv video DVR. They are NOT ata-8 compliant video hard drives. They only work in video DVR's when the drive is running perfectly. As soon as it starts to generate late video frames due to error correction, DVR's that require ATA-8 behavior will start locking up and/or crashing. I love western digital drives in general, but their surveillance drives are awful in DVR systems. ... show more
Reviewed in the United States on June 27, 2020 by Longhorn

  • Not Good...
Capacity: 3TB
I have purchased a lot of these WD purple hard drives over the years to record video from our cameras. Up until recently I have always had good luck with these and they have been solid, however in the past few months, I have had three failures on drives that were less than a year old. WD did replace them, so I am happy about that, but I am a little concerned that the quality has gone down. I hope it was a fluke… Update - another failure. Tried to open a support case with WD about this and it has been over a week with no reply. Changing my rating to two stars. ... show more
Reviewed in the United States on October 6, 2017 by bford

  • Completely dead after 10 months. Concern how WD handle the replacement
Capacity: 4TB
The Surveillance harddrive is completely dead after 10 months of usage (recording). It used a small portion of the harddrive only. My Surveillance system cannot recognize the harddrive anymore (generated a beep). My two computers cannot see the harddrive at all. The manufacturer WD will replace the harddrive. WD asked me to send the damaged HD back. I have a huge concern about the private data. WD does not follow the industrial standard to handle the custom data. The only way to ensure the safety of custom data is physically destroy the HD by shreddering it into dust. Removing, rewriting (repeatedly overwrite), degussing are not industrial standard of handling custom data in the old drive! Most of the HD manufacturer will refurb the HD. That is the bad practice. Experts can recover the old data easily. ... show more
Reviewed in the United States on August 31, 2018 by Dino Smith

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