Search  for anything...
Western Digital

Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAZ

    • Based on 54,974 reviews
Condition: New
Checking for product changes
$78.85 Why this price?

Buy Now, Pay Later

As low as $13.14 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Provantage LLC
Arrives May 24 – May 25
Order within 12 hours and 33 minutes
Available payment plans shown during checkout

Recently Viewed

Capacity: 4TB


Style: Previous Generation


Features

  • Reliable everyday computing.Specific uses: Personal
  • Western Digital quality and reliability
  • Free Acronis True Image WD Edition cloning software
  • Massive capacity up to 6TB

Description

WD Blue internal hard drives deliver reliability for office and web applications. They are ideal for use as primary drives in desktop PCs and for office applications. With a range of capacities and cache sizes, there’s a WD Blue internal hard drive that’s just right for you.


Digital Storage Capacity: 4 TB


Hard Disk Interface: Serial ATA-600


Connectivity Technology: SATA


Brand: Western Digital


Special Feature: Data Recovery Service


Hard Disk Form Factor: 3.5 Inches


Hard Disk Description: Mechanical Hard Disk


Compatible Devices: PC, Desktop, Xbox


Installation Type: Internal Hard Drive


Color: 4TB


Hard Drive: ‎4 TB Mechanical Hard Disk


Brand: ‎Western Digital


Series: ‎WD Blue PC Hard Drive


Item model number: ‎WD40EZAZ


Hardware Platform: ‎PC


Item Weight: ‎4.2 ounces


Product Dimensions: ‎5.79 x 4 x 1.03 inches


Item Dimensions LxWxH: ‎5.79 x 4 x 1.03 inches


Color: ‎4TB


Hard Drive Interface: ‎Serial ATA-600


Hard Drive Rotational Speed: ‎5400 RPM


Batteries: ‎1 Lithium Ion batteries required.


Manufacturer: ‎Western Digital Technologies, Inc.


Language: ‎English, English, English, English, English


Date First Available: ‎June 23, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 24 – May 25

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Old Reliable - An Investment That Stood the Test of Time
Capacity: 1TB Style: Newest Generation
In 2015, I purchased the Western Digital 1TB WD Blue PC Internal Hard Drive, and wow; this workhorse is driving away like a champ even after all these years. How many products nowadays can you buy and genuinely expect them to still work over five years later? Although it's an HDD that may not compete with the speed of modern SSDs, it offers phenomenal storage capacity at an unbeatable price. With HDDs, you are granted solidity and reliability, always crucial elements in handling data. As it was said - "Old is Gold." But bear in mind, if speed and performance are your primal needs, then SSD could be preferable. The major bell ringer for me regarding the Western Digital 1TB HDD is the excellent value for money. This budget-friendly beef of storage is perfect for those looking to get an enormous bang for their buck. The drive still functions exceptionally well, six years post-purchase, without any hiccups. It also offers valuable features like Free Acronis True Image WD Edition cloning software which eases data migration. It's also important to note that the WD Blue PC Hard Drive boasts a Data Recovery Service feature. In terms of compatibility, it readily gels well with desktop systems, ensuring a seamless experience right through the installation and usage stages. Remember that it's painted in this excellent blue, stepping away from dull, conventional storage system shades. In conclusion, Western Digital Blue can be your long-lasting companion for those seeking a reasonably priced, hardy, and reliable hard drive. This 1TB workhorse of an industry deserves its five stars for dependability, capability, capacity, and cost-effectiveness. ... show more
Reviewed in the United States on August 14, 2023 by Aleks P.
    • Nice storage drives!
Capacity: 8TB Style: Newest Generation
Purchased two of these WD Blue 8 TB drives recently. The second one took almost a month to get here but it finally arrived. Both drives are working flawless so far. I don't intend to use these for gaming or consistent drive activities. Only purchased as storage drives where I can free up my NVMe SSD drives for mission critical operations. The drives must be formatted as GPT drives so you can access the full drive capacity. If you format it as an MBR drive it will only show up as a 2 TB because that's the limitations imposed upon you by the MBR standard. Once you initialize the drive as GPT, you should format it as required. These WD Blue drives yields 7.28 TB of drive space total after it's formatted in it's entirety. Don't forget to assign a drive letter or it may not show up on your screen. I purchased the "ORICO 3.5 USB C 3.1 Hard Drive Enclosure" for the secondary drive so I can use it as an external backup drive. It allows the WD Blue drive to work at it's maximum potential speed of 6Gbps via a 3.1 USB port. Most of the other drive enclosures operate at 3.0 speeds and would make drive backups slower than necessary on a 5640 RPM drive. With that said, I highly recommend these WD Blue drives for passive backup storage. Don't know if you should be using these for gaming and such. There is a reason they offer a WD Black drive for such activities. ... show more
Reviewed in the United States on June 23, 2023 by AJ
    • Good, practical desktop drive
Capacity: 1TB Style: Newest Generation
Review Image by m6502 m6502
I gave this drive to someone as a gift, and they've been using it for backups for 10 months without issue. My review is based on another unit of this drive which I bought for myself some months later. I've been using it as my primary desktop OS/programs drive since 5/29/2014, so it's about 5 months now. There have been no problems thus far. It's really quite a bargain for desktop use if 1TB is all you need. The actual capacity of this drive is 931.5GB. That's an old marketing trick which can be blamed for the pointless redefinition of all our real, long established data measurements with those silly "i" characters. I won't dwell on it any further, but 931GB is the true capacity when measured in base 2, as all data is correctly measured. This 1TB Blue drive uses a single 1TB platter spinning at 7200rpm. There are 2 heads (each side is 500GB). A single platter design is usually better for reliability than having multiple smaller platters, because there are fewer points of failure, the assembly is lighter, the motor doesn't have to work as hard, and less heat is generated. Single platter drives will also tend to be quieter, but due to my configuration I can't judge the noise level. There has been much discussion and testing among users in online forums, including WD's forum, which repeatedly show that the 1TB Blue and 1TB Black perform the same. It appears the only benefit of the 1TB Black is a longer warranty. Some Blacks are faster than this drive, but the 1TB model is not. Compared to a Green, the Blue is faster owing to it's faster rotation speed. The Green drives also have an "intellipark" feature which causes them to keep parking the heads after a few seconds of inactivity. This can cause laggy response and extra wear. I dislike that design - I believe power management functions should be left under the control of the operating system, which can account for user preferences and what is happening in the rest of the system. Hardcoding this behavior into the drive is ridiculous, in my opinion. The Blue behaves the way I prefer - it does not use "intellipark", it stays ready to roll until directed otherwise through power management commands from the OS. I wish they were making the Blue series in larger sizes - it seems this 1TB is the end of the line. I don't care for the Greens and the Blacks are more expensive. Partition/Sector Alignment -------------------------------- Please be aware that like most modern drives, this drive uses 4KB sectors (also known as "advanced format"). If you are using Windows 2003, Windows XP or older, as I am, don't let Windows handle the partitioning of this drive. This is even an issue on unpatched versions of Vista and Windows 7. These older versions of Windows will believe that the physical sectors are 512 bytes, when in reality they are 4KB. As a result, the partition(s) will not be aligned with the physical sectors. It will still work, but performance will be reduced. Windows Server 2003 and Windows XP and older do not have any update to fix this, but it's not a problem as long as you do the partitioning with a suitable 3rd party utility. I think Western Digital offers a tool for this, but I've never tried it. Once the partitions are set, it's fine to let Windows format them. For my Windows XP install, I used a recent version of GParted to partition the drive. GParted can be downloaded and burned to a bootable CD, or installed to a USB flash drive. Just use the option to align your partition(s) on 1MB boundaries. This is the easy way to ensure they are aligned correctly for the best performance. Then boot your WinXP install disc and let it format the partition that you already created. It sounds harder than it is, it's a minor hassle but it's simple. If you ever change the partitions, once again use GParted or a similar utility that handles alignment for modern hard disks. Don't use the built-in XP partitioning. But again, once the partitions are created, it's fine to let Windows format them. The built-in partitioning is fixed in Windows 8. According to Microsoft, it is fixed in Windows 7 after installing Service Pack 1 - you would need to have that service pack before partitioning the drive, not after. Again according to Microsoft, it is also fixed in Windows Vista *after* installing update MS KB 2553708 - I assume this is automatically installed for people who use automatic updates, but I don't know that for a fact. This won't do you any good if you're doing a fresh install and your install disc predates the required update. The partition alignment detail I've described above is an issue you will encounter with any recent hard drive, it's not unique to this model. If you ignore it, performance will be affected but it will still work. You may see Seagate drives implying that they are immune from this, but in reality, they are not. All modern "advanced format" drives, of any brand, will perform better if sectors are properly aligned. But it's not a big deal - just use a modern partitioning utility and then you're set. ---------------------- I just tested this drive using "Roadkil's Disk Speed" on Windows XP 32-bit. I'll cut out all the variables and just give the linear transfer results with large block sizes. My drive has a few partitions and there are lots of files on it, so this might affect results. First partition (first 20GB): 170-178MB/sec linear read 3rd partition (physical location range is from 28-628GB): 153-177MB/sec linear read Last 300GB is unpartitioned so I can't test that range. I don't think the random access test is useful, because my partitioning greatly influences the result. There's a test mode for the whole physical disk, but it's results are too inconsistent. This drive is a great bargain if you just need a simple, inexpensive, well performing 7200rpm hard disk. I was tempted to try a Seagate SSHD, but I couldn't justify the cost compared to this. If I was shopping today, I'd look carefully at the HGST and Toshiba offerings as well, but from the WD side this is my pick for a general purpose 1TB desktop drive. Update: It is now 11/2015. This drive is in my desktop PC, used daily, and still works fine. Some months ago I ran a benchmark on this drive using the linux utility "gnome-disks". The random access performance measured out to a 15.7ms average. This is mediocre, but expected from a quiet drive. Screenshot is attached. It also shows the transfer rate across the disk (read test only, I didn't test writes). ... show more
Reviewed in the United States on October 27, 2014 by m6502 m6502

Can't find a product?

Find it on Amazon first, then paste the link below.