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Western Digital 10TB WD Red NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD100EFAX (Old Version)

4.6 4.6 out of 5 stars 556 ratings

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10TB
Red

About this item

  • Specifically Designed for use in NAS systems with up to 8 bays
  • Suppots up to 180 TB/yr workload rate; Workload Rate is defined as the amount of user data transferred to or from the hard drive; Workload Rate is annualized (TB transferred times (8760 / recorded Power on hours)); Workload Rate will vary depending on Your hardware and Software components and configurations
  • NASware firmware for Compatibility
  • Small and Home office NAS systems in a 24/7 environment
  • 3 year manufacturer's limited warranty
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Important information

Legal Disclaimer

As used for storage capacity, one gigabyte (GB) = one billion bytes and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment.

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Western Digital 10TB WD Red NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD100EFAX (Old Version)
Western Digital 10TB WD Red NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD100EFAX (Old Version)
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Price$299.99-7% $139.99
List:$149.99
-12% $149.90
List:$169.99
-30% $199.99
List:$284.99
$58.28-21% $92.99
List:$117.03
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Thursday, Mar 28
Get it as soon as Monday, Apr 1
Customer Ratings
Easy to install
4.8
4.5
4.5
4.5
4.5
Storage Capacity
4.8
4.6
4.6
4.6
4.5
Noise level
4.2
4.3
4.3
4.3
3.9
Value for money
4.2
4.2
4.2
4.2
3.9
Quality of material
4.1
4.1
4.1
4.1
4.6
Sold By
Dealforless
Amazon.com
TheTechGroup
Amazon.com
Endless Technology Solutions
Amazon.com
storage capacity
10 TB
0 TB
6 TB
10 TB
1 TB
2 TB
hardware interface
sata 6 0 gb
sata 6 0 gb
sata 6 0 gb
sata 6 0 gb
sata 3 0 gb
sata 6 0 gb
compatible devices
NASware firmware
NAS System
Desktop
Desktop
Designed with CMR technology for medium or large-sized businesses in RAID-optimized NAS systems with up to 24 bays. Perfect for archiving, sharing and handling high-intensity workloads.
form factor
3.5-inch
3.5-inch
3.5-inch
3.5-inch
3.5-inch
3.5-inch
read speed
210 megabytes per second
175 megabytes per second
215 megabytes per second
147 megabytes per second

What's in the box

  • Drive
  • Product information

    Technical Details

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    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

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    Western Digital 10TB WD Red NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD100EFAX (Old Version)


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    Product Description

    There's a leading edge WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 14TB, WD Red drives offer a wide array of solutions for customers looking to build a NAS storage solution. Built for single-bay to 8-bay NAS systems, WD Red drives Pack the power to store your precious data in one powerhouse unit. With WD Red drives, you're ready for what's next.

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    556 global ratings

    Customers say

    Customers like the performance, quality and storage space of the hard drive. For example, they mention that it performs flawlessly, is reliable and dependable. Some appreciate the value for money, saying that it's the best bang for buck. Opinions are mixed on the noise level.

    AI-generated from the text of customer reviews

    25 customers mention25 positive0 negative

    Customers are satisfied with the performance of the hard drive. They mention that it runs constantly and performs flawlessly for at least a few years. The drives are quiet and work great in their NAS. They have no issues so far and run cool, quiet, and reliably.

    "...So far, no bad sectors. The drives run at about 35C / 95F in a room that is about 75F. Drives are nice and quiet...." Read more

    "...They run constantly and perform flawlessly for a least a few years...." Read more

    "...No issues." Read more

    "I got the 10TB version. It comes with 256MB of cache, so the performance is quite good even though the rotational speed is low...." Read more

    20 customers mention17 positive3 negative

    Customers like the quality of the computer drive. For example, they say it's reliable, dependable, and solid in every way. Some mention that it lasts forever and has a reliable 24/7 operation.

    "...They run constantly and perform flawlessly for a least a few years...." Read more

    "...production in a Synology DS918+ on July 20, 2019, and they are still running strong. No issues." Read more

    "...In 6 months of use the drive operated reliabilty with no problems whatsoever. Would recommended doing business with All4Computers again !" Read more

    "I'll order another next month, WD Red 10 TB NAS Hard Drives are reliable, dependable and with mass storage that is precisely what you want because..." Read more

    9 customers mention9 positive0 negative

    Customers are satisfied with the storage space provided by the hard drive. They mention that it works great for general storage, mass media storage, and backups and servers. Some say that the drive is decent but has some random clicks.

    "Great storage capacity, low noise level and very easy to install. Only draw back is the receipt doesn't contain all the info...." Read more

    "Drive runs cool, quiet, and reliably. Using for mass media storage for streaming across multiple devices on my home network." Read more

    "...Work great in NAS, what they are designed for. Also work great for general storage." Read more

    "Quiet, cool and spacious. It’s great so far." Read more

    9 customers mention9 positive0 negative

    Customers appreciate the value of the hard drive. They say it's the best bang for the buck, well worth it, and represents a good balance between cost and performance. Customers also mention that it runs cool and is reliable.

    "...biggest the WDPR4100 would take, and represented a good balance between cost and performance...." Read more

    "...Well worth it." Read more

    "Great product from what I can tell. Only been using it for a day though so we’ll see how long it lasts for...." Read more

    "These drives are amazing. I have used 5 x 2 Tb WD reds in a Drobo for about 5 years without a failing disk...." Read more

    6 customers mention6 positive0 negative

    Customers find the installation process of the computer drive to be incredibly easy. They also appreciate the quality, durability, and ease of use of the product.

    "...Easy install, but as described above, I had hassles actually getting Windows 10 do recognize the drive...." Read more

    "Great storage capacity, low noise level and very easy to install. Only draw back is the receipt doesn't contain all the info...." Read more

    "I put these in a new Synology DS1019+ NAS and they are incredibly easy to install in Synology's drive caddies and then they've operated perfectly..." Read more

    "...So far, it is working fine 24x7, cool and without issues. Had no problem installing it, even when using a cheap USB-SATA adapter before moving it to..." Read more

    14 customers mention7 positive7 negative

    Customers are mixed about the noise of the computer drive. Some mention it's very quiet, while others say it makes noticeable noise and causes excessive vibrations.

    "...drives run at about 35C / 95F in a room that is about 75F. Drives are nice and quiet...." Read more

    "...Once in a while, they get a little noisy when the file lookup tables get really large, but these WD Red series NAS drives are purpose made for this..." Read more

    "...The thing I like best about this drive is the noise level. I have had WD Black drives in the past and they are LOUD...." Read more

    "...That why I rated them as 4 stars. I can hear the vibration and "thud-thud" noise inside consistently when the drives are being accessed...." Read more

    How to install the drive on Windows 10 if disk management is not giving you formatting options...
    4 Stars
    How to install the drive on Windows 10 if disk management is not giving you formatting options...
    I thought I would post my own experiences in trying to mount this 10TB drive into a brand new Win10 build. Current application for the drive is media storage on a media PC. Review will follow.Specs: Asus Z270K mobo, Samsung m.2 960 500gb boot drive, 16TB Ripjaw DDR4, GTX550Ti GPU, i7 4.2ghz Kaby Lake quadcore CPU, HAF XB case. The case allows for "hot-swapping" of drives.The main issue was that the disk management was having trouble"seeing" the 10TB Red NAS drive in an internal bay but could recognize it in an external enclosure (which does no good for long-term use). Disk management "saw" the drive as having two partitions but when I right-clicked over options to try and format it, the selections were grayed-out and couldn't be accessed.I called WD Customer Support the following steps rectified the issue. The disclaimer here is that you should only try this if you know what you're doing. It will wipe the drive clean and if you select the wrong drive, you will be in a world of poop.The screenshot will hopefully help.1. Left click Cortana icon2. In the search panel type in CMD (this will bring up the black command screen with text that you see on the upper left)3. Type diskpart (all one word)4. Type list disk (separate words)5. Take note of which drive you want the system to format (in my case it was Disk 1 which is 9TB). YOUR DISK NUMBER MAY VARY.6. Type select disk (insert number no parentheses, separate spaces)7. type clean DOUBLE CHECK THAT YOU ARE WIPING THE CORRECT DRIVE8. right click on windows start menu and scroll up and select Disk Management9. the drive should appear and you can then select it and begin the formatting process4 stars: data transfers at 150-160MB/s internal SATA and 90-130 on USB 3.0 on a Sabrent enclosureEasy install, but as described above, I had hassles actually getting Windows 10 do recognize the drive. This may be due to the fact that it was initially formatted on a Windows 7 PC. It's a pretty quiet drive so far and the data access speeds are just dandy for a HTPC.
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    Top reviews from the United States

    Reviewed in the United States on July 28, 2019
    Capacity: 10TBStyle: RedVerified Purchase
    Reviewed in the United States on May 9, 2019
    Capacity: 10TBStyle: RedVerified Purchase
    4 people found this helpful
    Report
    Reviewed in the United States on May 17, 2019
    Capacity: 10TBStyle: RedVerified Purchase
    One person found this helpful
    Report
    Reviewed in the United States on January 22, 2023
    Capacity: 10TBStyle: RedVerified Purchase
    Reviewed in the United States on February 27, 2019
    Capacity: 10TBStyle: RedVerified Purchase
    Reviewed in the United States on October 13, 2022
    Capacity: 10TBStyle: RedVerified Purchase
    Customer image
    5.0 out of 5 stars 3 Years and still going
    Reviewed in the United States on October 13, 2022
    Purchased 4 x 10TB Red drives on July 12, 2019. Went into production in a Synology DS918+ on July 20, 2019, and they are still running strong. No issues.
    Images in this review
    Customer image
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    Top reviews from other countries

    Translate all reviews to English
    Jasper
    2.0 out of 5 stars WD100EFAX besteld WD101EFAX geleverd
    Reviewed in the Netherlands on January 14, 2021
    Capacity: 10TBStyle: RedVerified Purchase
    James C.
    5.0 out of 5 stars Very reliable drives, highly recommended
    Reviewed in Canada on November 10, 2018
    Capacity: 10TBStyle: RedVerified Purchase
    Customer image
    James C.
    5.0 out of 5 stars Very reliable drives, highly recommended
    Reviewed in Canada on November 10, 2018
    I've had very good luck with WD Red drives over the years in terms of reliability.

    I've currently got 6 x 4TB (4 of which are in a RAID 5 array), 2 x 8TB, and 2 x 10TB. I've had a number of 2TB drives as well. All have performed very well.

    - Very reliable drives
    - Low power consumption
    - Operates at low temperatures
    - Quiet operation

    Drive comparison:
    10TB: 256MB cache, 210 MB/s sequential performance
    *8TB: 128MB cache, 178 MB/s sequential performance
    6TB: 64MB cache, 175 MB/s sequential performance
    1-4TB: 64MB cache, ~150 MB/s sequential performance

    *The 8TB sold here (model WD80EFZX) has a 128MB cache, but it's worth noting that there's other versions of this drive (models WD80EFAX and WD80EMAZ) which have a 256MB cache.

    The 8TB/10TB models use a sealed helium chamber to reduce platter friction — HGST developed the technology for their expensive enterprise drives and WD acquired this technology when they purchased HGST. WD has now implemented it in the consumer space relatively unchanged but at roughly a fifth of the cost.

    (I've had a number of Seagate drives in the past as well but I'll never buy another Seagate product as most of my Seagate drives failed rather miserably, including 2 in a RAID 5 array which failed almost simultaneously, resulting in the loss of a lot of important data. A couple of years ago Backblaze noted that their Seagate drives had a 73.5% survival rate over 36 months, with a burst of deaths near the 20 month mark. Their WD drives had a 94.8% survival rate over the same period — i.e. the WD drives were 5x less likely to fail within the first 3 years when compared to Seagate.)

    My biggest gripe is actually unrelated to the product itself but with Amazon's limit of 1 drive per customer — this really makes no sense for NAS drives seeing as most people will need 2-4 of them. To use an audio analogy, this would be like having a limit of 1 speaker or 1 DJ turntable per customer... pretty silly.
    (EDIT: I can confirm that you're able to reorder after exactly 7 days.)

    While not specific to this drive, I strongly recommend doing an 'Extended Scan' on all new HDDs you purchase to check for bad sectors before using them (whether WD, Seagate or otherwise.) It takes a bit of time but well worth it. If you find any bad sectors you can do an RMA before entrusting it with your data. For WD drives, you can use DLDIAG (Data Lifeguard Diagnostics) which you can download free from WD's website.
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    30 people found this helpful
    Report
    Mayank Upadhyay
    5.0 out of 5 stars Sturdy, Consistent, Reliable
    Reviewed in India on March 20, 2019
    Capacity: 10TBStyle: RedVerified Purchase
    One person found this helpful
    Report
    masterac
    5.0 out of 5 stars PARFAIT
    Reviewed in France on March 1, 2019
    Capacity: 10TBStyle: RedVerified Purchase
    21 people found this helpful
    Report
    Thorsten
    5.0 out of 5 stars Bis jetzt sehr zufrieden.
    Reviewed in Germany on October 1, 2018
    Capacity: 10TBStyle: RedVerified Purchase
    One person found this helpful
    Report