---
product_id: 1184454
title: "(Old Model) WD Green 4TB Desktop Hard Drive: 3.5-inch, SATA 6 Gb/s, IntelliPower, 64MB Cache WD40EZRX"
brand: "western digital"
price: "828.43 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Western Digital"
url: https://www.desertcart.tn/products/1184454-old-model-wd-green-4tb-desktop-hard-drive-3-5
store_origin: TN
region: Tunisia
---

# SATA 6 Gb/s ultra-fast interface 40% power savings with IntelliPower 4TB massive storage (Old Model) WD Green 4TB Desktop Hard Drive: 3.5-inch, SATA 6 Gb/s, IntelliPower, 64MB Cache WD40EZRX

**Brand:** western digital
**Price:** 828.43 DT
**Availability:** ✅ In Stock

## Summary

> 💾 Power up your productivity with storage that’s smart, silent, and seriously spacious!

## Quick Answers

- **What is this?** (Old Model) WD Green 4TB Desktop Hard Drive: 3.5-inch, SATA 6 Gb/s, IntelliPower, 64MB Cache WD40EZRX by western digital
- **How much does it cost?** 828.43 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/1184454-old-model-wd-green-4tb-desktop-hard-drive-3-5)

## Best For

- western digital enthusiasts

## Why This Product

- Trusted western digital brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Massive 4TB Capacity:** Store up to 1M MP3s, 800K photos & 300 hrs HD video—your digital life, all in one place.
- • **Pro-Grade Reliability:** Backed by Western Digital’s trusted legacy and a 2-year limited warranty—confidence in every byte.
- • **Whisper-Quiet Operation:** Enjoy best-in-class acoustics with idle noise as low as 25 dBA—work without distractions.
- • **Blazing SATA 6 Gb/s Speed:** Experience seamless data transfer at up to 150 MB/s—efficiency that keeps your workflow smooth.
- • **Eco-Friendly Power Efficiency:** Cut power consumption by 40% with IntelliPower & IntelliSeek tech—performance meets sustainability.

## Overview

The WD Green 4TB Desktop Hard Drive (WD40EZRX) combines a massive 4TB capacity with a 3.5-inch form factor and SATA 6 Gb/s interface for fast, reliable data storage. Featuring IntelliPower technology, it balances spin speed and caching to reduce power consumption by up to 40%, while IntelliSeek optimizes seek speeds to minimize noise and vibration. With a 64MB cache and transfer rates up to 150 MB/s, it delivers solid performance ideal for desktop storage needs. Its whisper-quiet acoustics and 2-year warranty make it a dependable choice for professionals seeking eco-friendly, high-capacity storage.

## Description

SpecificationsMfr Part Number: WD40EZRXCapacity: 4 TBRotational Speed: IntelliPowerCache: 64 MBInterface: SATA 6 Gb/sData Transfer Rate (Max):Buffer to Host: 6 Gb/sHost to/from Drive (Sustained): 150 MB/sShock:Operating: 65Gs @ 2ms (read/write); 30Gs @ 2ms (read)Non-operating: 250Gs @ 1msAcoustics:Idle Mode: 25 dBA (average)Seek Mode: 28 dBA (average)Power  Management:12VDC ±10% (Peak): 1.75 ARead/Write: 4.5 WattsIdle: 3.3 WattsStandby: 0.4 WattsSleep: 0.4 WattsForm Factor: 3.5 inchDimensions (WxLxH): 4.000 x 5.787 x 1.028 inch / 101.6 x 147.0 x 26.1 mmWeight: 1.5 lbs / 0.68 kgRoHS Compliant

Review: Great drive for those who understand the specs - I purchased two of these drives in September 2011, and I could not be happier with them. I have great luck overall with Western Digital disks, and these drives are no exception. One was purchased here on desertcart, and another was purchased at a local electronics shop. Both have not given me any problems. The rotational speed of the drive is, for some, a limiting factor in its deployment settings. I have both disks installed in an old 2003-era Power Mac G4 tower, connected to two Sonnet TSATA PCI cards, and when formatted correctly, work very well and recognize their full capacity in my setup. Due to the space limitations of the older Apple Partition Map (APM) formatting scheme, they must be configured as GPT (GUID Partition Table) and therefore cannot be used to boot the computer, even though the Sonnet SATA cards do support booting to connected drives. I use smaller SATA disks (2TB and under) for booting purposes since they can be properly formatted using APM. Running in OS X 10.5.8, the drives recognize all 2.7TB of formatted capacity, and do a very admirable job of acting as my data repository. If I recall correctly, RAID is not recommended with this model 'Green' drive due to the power saving logic, so I use a program to copy, every 6 hours, from the primary storage disk, to the other. This has the added benefit of avoiding filesystem corruption if one drive starts to go south. Luckily, that is not the case. Performance for copying over 1TB of data from the old SATA disk to the WD 3TB green drive seemed pretty close to the 1.5Gbps interface speed of the SATA card, which was simply amazing on this old G4 tower. I don't regularly access the machine, and most file transfer is done over my home network, so the disks aren't used as primary storage. The speed, though, is not noticeably slower than the other 7200RPM SATA disks (one Seagate 1TB and one Hitachi 2TB) I have installed in the machine. This phenomenon is likely due to the SATA 1.5Gbps interface of the card being the primary bottleneck, not the rotational speed of any of the disks involved. I have not run any quantitative speed testing on any of the disks as I have not noticed any issues with performance in my current setup. I am very happy with these disks and their compatibility with my old, creaking setup. I feel good knowing that if the G4 tower ever goes south, I can readily move them into a Mac Pro tower with ease. I was skeptical that investing in a SATA setup for my old machine would be worth the cost. I now believe that for its purpose as a local network storage device, and not as a daily use machine, these drives are probably among the best for this kind of setup regardless of the platform you'll be deploying on (assuming your setup with work with 3TB disks). One note is that (as of early November 2011) the prices of the 3TB Green drives have more than doubled since I purchased them, likely due to flooding in Thailand where most hard disks are produced these days. It may seem vulgar or insensitive to discuss storage pricing when so many peoples' lives are devastated by this horrible disaster, but this is a product review, so I mention it with as much context as I can. I could not personally justify a purchase at the current price level, but if you need 3TB of storage in one disk mechanism, I believe you can acquire this drive with confidence assuming the cost does not prevent you from doing so.
Review: Great, cheap drive for a Raid Array or Solo Use - I have a total of seven of these drives between 6 on a raid array on one PC and one as a data drive (non raid) in another PC. They are slower at RPM speed than some other drives, at 5400 RPM so if you are someone who "needs" a 7200 RPM drive then you do not need this. They are however the CHEAPEST, MOST RELIABLE CHEAP drive out there. Unlike some brands who will sell you a 5400rpm drive for this, or the various drawbacks from externals, this drive is inexpensive, not annoying in its "green" power management (or needing to have it shut off) and its fast, I get good speed in my 6gb/sec Sata3 port, and overall think its great that for this price, I get a drive with a 3 year warranty, reasonably fast transfer rates despite a lower RPM (RPM is not everything apparently) and its a Western Digital (and not lower on quality) for the price. Western Digital have been reliable drives for me, for many years. I have some going back as far as 8 years old and still running (that does not mean one has never died) but it's not common. It's more common that the storage size becomes too small for me and gets it shelved than the drive fails. I am optimistic by the early performance of these Caviar Greens that I will continue to use these for a 3tb drive. For 2tb drives I prefer the Caviar Black (which is not made in 3tb size). I was apprehensive to go to another brand, so chose WD's lower line rather than risk a brand who has not performed well for me for years. Five stars are for the value, and the fact it delivers. I would like to see a 7200rpm 3tb from WD someday come around, such as a Caviar Black 3tb, but until they do, I am happy to buy these, despite I usually buy the Blacks (I do need bigger than 2tb occasionally) or like for my raid array which runs 6 3tb caviar greens, wanted the array to be bigger then 6 2tb blacks would achieve. Buy this drive with a clean conscience, it will work for you, and work well. I never have had a DOA from WD, I am sure it happens, but I have 6 pcs, and for that to never have happened, is great. WD! Caviar! and this time GREEN ain't that bad. In fact for its price, you cannot beat it.

## Features

- WD Green hard drives reduce power consumption by up to 40% and offer best-in-class acoustics and operating temperature and 3rd generation SATA interface.
- IntelliPower - A fine-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both significant power savings and solid performance.
- IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise, and vibration.
- 4 TB capacity holds up to 800,000 digital photos, 1,000,000 MP3 files, and 300 hours of HD video.
- 2 year limited warranty.
- Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EHBEUZO |
| Additional Features | Portable |
| Best Sellers Rank | #152 in Internal Hard Drives |
| Brand | Western Digital |
| Built-In Media | Hard Drive |
| Cache Memory Installed Size | 64 |
| Color | Green |
| Compatible Devices | Desktop |
| Connectivity Technology | SATA |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.3 out of 5 stars 4,218 Reviews |
| Data Transfer Rate | 6 Gigabits Per Second |
| Digital Storage Capacity | 4000 GB |
| Enclosure Material | Aluminum/Glass |
| Form Factor | 3.5-inch |
| Global Trade Identification Number | 00430014000121, 00718037778457, 00809185313840, 04054842257425 |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Disk Form Factor | 3.5 Inches |
| Hard Disk Interface | Serial ATA-600 |
| Hard Disk Rotational Speed | 10000 RPM |
| Hard-Drive Size | 4 TB |
| Hardware Connectivity | SATA 6.0 Gb/s |
| Hardware Platform | PC |
| Installation Type | Internal Hard Drive |
| Item Part Number | WD40EZRX |
| Item Weight | 680 Grams |
| Manufacturer | Western Digital |
| Media Speed | 100 MB/s |
| Mfr Part Number | WD40EZRX |
| Model Name | Green |
| Model Number | WD40EZRX |
| Number of Items | 1 |
| Read Speed | 150 Megabytes Per Second |
| Special Feature | Portable |
| Specific Uses For Product | Personal |
| UPC | 809185313840 430014000121 718037778457 804066533164 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Western Digital
- **Color:** Green
- **Compatible Devices:** Desktop
- **Connectivity Technology:** SATA
- **Digital Storage Capacity:** 4000 GB
- **Hard Disk Description:** Mechanical Hard Disk
- **Hard Disk Form Factor:** 3.5 Inches
- **Hard Disk Interface:** Serial ATA-600
- **Installation Type:** Internal Hard Drive
- **Special Feature:** Portable

## Images

![(Old Model) WD Green 4TB Desktop Hard Drive: 3.5-inch, SATA 6 Gb/s, IntelliPower, 64MB Cache WD40EZRX - Image 1](https://m.media-amazon.com/images/I/71opaMqMasL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What's the RPM?**
A: It seems to use a variable RPM between 5200 and 7200.Source:http://www.techpowerup.com/forums/threads/western-digital-intellipower-hard-drives.178122/

**Q: Will this work in a PS4?**
A: Yes, but you would need to also purchase a Nyko Data Bank to make this work, even then there may be requirements depending on the size (ie: sleep mode).

**Q: When i click "compare to similar items" the chart shows that this drive is 10000 rpm.  is this chart inaccurate?**
A: All WD Green drives are 5400RPM. I am not sure where you saw the 10,000RPM specs but they are definitely not for the GREEN Series of drives. The Green series have better cooling and are much more quiet than the faster RPM drives but are slightly slower in performance. Hope this helps!

**Q: is this oem**
A: Yup.  Genuine WD, packaged for system integrators.No instructions, documents, cables ..... Not a retail package.It saves you a few bucks, if you know what to do and have the odd bits on hand.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great drive for those who understand the specs
*by O***U on November 8, 2011*

I purchased two of these drives in September 2011, and I could not be happier with them. I have great luck overall with Western Digital disks, and these drives are no exception. One was purchased here on Amazon, and another was purchased at a local electronics shop. Both have not given me any problems. The rotational speed of the drive is, for some, a limiting factor in its deployment settings. I have both disks installed in an old 2003-era Power Mac G4 tower, connected to two Sonnet TSATA PCI cards, and when formatted correctly, work very well and recognize their full capacity in my setup. Due to the space limitations of the older Apple Partition Map (APM) formatting scheme, they must be configured as GPT (GUID Partition Table) and therefore cannot be used to boot the computer, even though the Sonnet SATA cards do support booting to connected drives. I use smaller SATA disks (2TB and under) for booting purposes since they can be properly formatted using APM. Running in OS X 10.5.8, the drives recognize all 2.7TB of formatted capacity, and do a very admirable job of acting as my data repository. If I recall correctly, RAID is not recommended with this model 'Green' drive due to the power saving logic, so I use a program to copy, every 6 hours, from the primary storage disk, to the other. This has the added benefit of avoiding filesystem corruption if one drive starts to go south. Luckily, that is not the case. Performance for copying over 1TB of data from the old SATA disk to the WD 3TB green drive seemed pretty close to the 1.5Gbps interface speed of the SATA card, which was simply amazing on this old G4 tower. I don't regularly access the machine, and most file transfer is done over my home network, so the disks aren't used as primary storage. The speed, though, is not noticeably slower than the other 7200RPM SATA disks (one Seagate 1TB and one Hitachi 2TB) I have installed in the machine. This phenomenon is likely due to the SATA 1.5Gbps interface of the card being the primary bottleneck, not the rotational speed of any of the disks involved. I have not run any quantitative speed testing on any of the disks as I have not noticed any issues with performance in my current setup. I am very happy with these disks and their compatibility with my old, creaking setup. I feel good knowing that if the G4 tower ever goes south, I can readily move them into a Mac Pro tower with ease. I was skeptical that investing in a SATA setup for my old machine would be worth the cost. I now believe that for its purpose as a local network storage device, and not as a daily use machine, these drives are probably among the best for this kind of setup regardless of the platform you'll be deploying on (assuming your setup with work with 3TB disks). One note is that (as of early November 2011) the prices of the 3TB Green drives have more than doubled since I purchased them, likely due to flooding in Thailand where most hard disks are produced these days. It may seem vulgar or insensitive to discuss storage pricing when so many peoples' lives are devastated by this horrible disaster, but this is a product review, so I mention it with as much context as I can. I could not personally justify a purchase at the current price level, but if you need 3TB of storage in one disk mechanism, I believe you can acquire this drive with confidence assuming the cost does not prevent you from doing so.

### ⭐⭐⭐⭐⭐ Great, cheap drive for a Raid Array or Solo Use
*by B***A on December 26, 2011*

I have a total of seven of these drives between 6 on a raid array on one PC and one as a data drive (non raid) in another PC. They are slower at RPM speed than some other drives, at 5400 RPM so if you are someone who "needs" a 7200 RPM drive then you do not need this. They are however the CHEAPEST, MOST RELIABLE CHEAP drive out there. Unlike some brands who will sell you a 5400rpm drive for this, or the various drawbacks from externals, this drive is inexpensive, not annoying in its "green" power management (or needing to have it shut off) and its fast, I get good speed in my 6gb/sec Sata3 port, and overall think its great that for this price, I get a drive with a 3 year warranty, reasonably fast transfer rates despite a lower RPM (RPM is not everything apparently) and its a Western Digital (and not lower on quality) for the price. Western Digital have been reliable drives for me, for many years. I have some going back as far as 8 years old and still running (that does not mean one has never died) but it's not common. It's more common that the storage size becomes too small for me and gets it shelved than the drive fails. I am optimistic by the early performance of these Caviar Greens that I will continue to use these for a 3tb drive. For 2tb drives I prefer the Caviar Black (which is not made in 3tb size). I was apprehensive to go to another brand, so chose WD's lower line rather than risk a brand who has not performed well for me for years. Five stars are for the value, and the fact it delivers. I would like to see a 7200rpm 3tb from WD someday come around, such as a Caviar Black 3tb, but until they do, I am happy to buy these, despite I usually buy the Blacks (I do need bigger than 2tb occasionally) or like for my raid array which runs 6 3tb caviar greens, wanted the array to be bigger then 6 2tb blacks would achieve. Buy this drive with a clean conscience, it will work for you, and work well. I never have had a DOA from WD, I am sure it happens, but I have 6 pcs, and for that to never have happened, is great. WD! Caviar! and this time GREEN ain't that bad. In fact for its price, you cannot beat it.

### ⭐ Designed to fail within about 3 years
*by P***S on September 7, 2014*

I bought a Western Digital Green Caviar drive in March 2011 and it's failing as of Sept 2014. I think it was failing for a long time as every time I tried to use it for memory swap space, programs on my computer would start crashing. Yet it always passed all the drive tests that SeaTools could perform. Finally, things started getting extra bad in a virtual machine I was running on it, and SeaTools finally said it reported self test failure. Lasting only 3 years (or more likely 1 or 2 before it started having problems) is not too good compared to other drives I've owned. But that's just one drive, right? Unfortunately not. After more research, I discovered that these green drives are famous for parking their heads after 8 seconds of no read/write requests. Normally when a drive is on, its heads (used to read and write data) float over the spinning platters of the disk. When the heads park, they sit on something (a plastic pad in this case) and I think the scraping against the plastic gradually wears out the heads. I've read they can be parked anywhere from 250 thousand to 1.25 million times before the damage leads to read/write errors, although I suspect you will start seeing read/write retries causing slower performance earlier on. Using a windows utility called SpeedFan to read the "SMART attributes" on my failing drive, I found that the "Load Cycle Count" attribute had a "Raw" value of 000000080E92 hex, which converts to 528018 decimal, meaning the heads had been parked 528k times. That's enough to potentially destroy them, and I wasn't even using the drive as my main. The drive was used to perform backups 3 times a day and I occasionally ran virtual machines on it that wouldn't fit on my main drive, and it had the swap file on it from time to time. So these drives ship with a ridiculously-low 8 second timeout for parking the heads to save power, and obviously many home users (like me) will burn through the maximum number of head parkings in 3 or fewer years, so Western Digital gets to sell more drives. I've read other reviews say they tried to replace the failed drives under 2 or 3-year warranty and Western Digital sees the "Load Cycle Count" is high and tells the user they used the drive outside its intended purpose so they won't honor the warranty. Nice scam. I had hoped this might be a learning experience for Western Digital, but this new 4TB drive I just received has the same, destructive, 8-second timeout setting. If you google, you'll find a wdidle3.exe utility that can be used to increase the timeout to a more reasonable time, say 5 minutes. Recent versions of the "Ultimate boot CD" include the wdidle3 utility on a bootable CD, and if you're running Unix, you can also use idle3-tools. Any of these tools can also disable the timeout, but some have said disabling it on new drives makes them very slow or even emit a high pitched sound. I'm guessing WD caught on to people buying these low-cost green drives, disabling the timeout, then using them in server raid arrays instead of paying the high price of a server hard drive, so they purposely slow down the drive if you disable the timeout and also seem to slow it down to a lesser extent if you increase the timeout to 5 mins. I used idle3-tools myself after booting off an Ubuntu 10.10 CD I had around. I also tried Ubuntu 8 but idle3-tools would not build. Download idle3-tools using Ubuntu's web browser, open the download in archive manager, and extract to your Documents directory. Open a Terminal, change directory (cd) to where you extracted idle3-tools, then run 'make'. It will show warnings but should not show errors. Next, run 'parted' then 'print devices' then 'quit'. You should be able to identify the drive you want to set in the output of 'print devices'. To check the idle timeout value on your drive, run './idle3ctl -g105 /dev/sdb' but replace /dev/sdb with the name of the drive in the 'print devices' list. To set a five minute idle timeout, use './idle3ctl -s 138'. './idle3ctl -s 255' sets the maximum idle timeout, which is about 63 minutes. That's one advantage of using this tool instead of wdidle3 - you can set a timeout longer than 5 minutes. But 5 mins should be plenty. Even if it parked every 5 minutes exactly, 24 hours a day, it would only rack up 57k parks a year. It's pretty much impossible that your drive would constantly get accessed exactly once every 5.001 minutes and then be left idle for 5 minutes and repeat that process forever, unless you purposely designed something to do that. I've bought a number of these green drives for backups because I love the idea of having a drive that saves some power by parking the heads (Windows sleep disk on idle doesn't work reliably), but shipping the drives with an 8-second idle timeout with no warning to the customer not to use the drive for anything other than infrequent backups and not providing people with an any easy option to change the idle timeout is really scummy of Western Digital. Even their wdidle3 utility has big warnings not to use it with green drives, even though it works. It seems clear to me they want these drives to go bad for most people within 1-5 years depending on how the drive is used, and too many people will think that's just how long drives tend to last and buy another one. These drives were introduced in 2009 (or earlier?) so they've had at least 5 years to change things, but they still default to the 8 second idle timeout. Also, another one-star reviewer said these drives don't report any error when they start having problems reading data, which means even if you run periodic backups, you may be backing up corrupt data over an older good copy, and that's an absolutely irresponsible design choice. If you use SpeedFan to look at the SMART attributes and see a value above 0 in the Raw column of "Multi Zone Error Rate", the other reviewer said that's an indication of the silent read errors. My failing drive had a value of 8. I'm pretty sure reading corrupt data without error is what caused the virtual machines I was running on the failing drive to experience random problems and crashes. I've been using WD drives for years and have been pretty happy with them, but with their irresponsible error handling and scummy designed-to-fail default settings that haven't changed in at least 5 years, I'm going to look for another brand next time.

## Frequently Bought Together

- (Old Model) WD Green 4TB Desktop Hard Drive: 3.5-inch, SATA 6 Gb/s, IntelliPower, 64MB Cache WD40EZRX
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-05-29*