Amazon Renewed

Seagate Exos X20 ST20000NM007D 20TB 7 2K RPM SATA 6Gb s 3 5in Hard Drive Renewed

4.4(37)

67+ bought in the past month

$349.99$525.00

About this item

  • High Capacity: Offers 20TB of storage, making it the industry's highest-capacity 3.5-inch enterprise hard drive.
  • Enterprise-Class: Designed for demanding enterprise environments and data centers.
  • Helium Sealed-Drive Design: Reduces power consumption and weight while increasing durability.
  • PowerBalance: Optimizes Watts/TB for improved efficiency in random read/write operations.
  • High MTBF: Boasts a Mean Time Between Failures (MTBF) of 2.5 million hours.
$349.99
Was $525.00Save $175.01

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Product details

Digital Storage Capacity20 TB
Hard Disk InterfaceSerial ATA-600
Connectivity TechnologySATA
BrandSeagate
Special FeaturePortable
Hard Disk Form Factor3.5 Inches
Hard Disk DescriptionMechanical Hard Disk
Compatible DevicesDesktop
Installation TypeInternal Hard Drive
Hard Disk Size20 TB

Technical specifications

hard_drive20 TB Mechanical Hard Disk
best_sellers_rank#2,148 in Amazon Renewed ( See Top 100 in Amazon Renewed ) #125 in Internal Hard Drives #570 in Renewed Computers & Accessories #2,661 in Computer Internal Components

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Customer reviews

4.437 ratings

Customers say

Customers find the hard drive to be of good quality and appreciate its quiet operation.

★★★★★

Perfect And Inexpensive!

Chris CJune 1, 2025

These two drives are in a two-bay Asustor AS5202T. It spent over two days rebuilding the RAID as I changed the installed (18 TB Exos) drives for these drives. I now have at least 10, maybe 14 Exos drives in 4 NAS' - three Asustors and one Synology. Every single one has been and is working perfectly. They're all 4 bay NAS' except this one. It made sense to put these - the biggest ones I have - in this NAS because after you provide any kind of redundancy, you end up mirroring the drives and halving the capacity. After that, the only slight problem I had was that the Asustor got an error when I tried to expand the RAID. Rebooting the NAS took care of that. The Asustor does everything, but it doesn't assume that you want to put the newer, bigger drives all in the Raid. So, when it's done rebuilding the RAID and scrubbing the drives, you have to actually click on an "Expand RAID" gadget. It did that in about two seconds after I rebooted it. It's an 18 TB RAID now. Therefore, these drives are perfectly compatible with with Asustor NAS'. The 18 TB drives that were in there went into a 4 bay Synology NAS. (SHR does much better with different-sized hard drives.) Those two drives and two 14 TB Exos drives are now in a 41.8 TB SHR1 RAID. Therefore, these drives are also completely compatible with Synology NAS'. They got here very quickly and they were extremely well packed, each in its own box. A very unique bubble wrap "pouch" made it so I didn't even have to cut anything! The "pouch", which enveloped the drive, stretched and bent enough to easily remove the hard drive and then sprang back into shape. After all this, I put two leftover 10 TB Exos hard drives into those pouches. It's the first time I've ever seen that and I like it a lot. I didn't check right away, but when I did, I think after I'd replaced one of the drives, these drives showed three hundred and some hours on them. They showed "Healthy" the entire time, beginning to end, each and every time I looked at them. A very, very good deal! I can't explain it! I do love the rich guys replacing these or whatever is happening, so I can get them for a very good price! Are they all getting 24 TB SSD's or what?!? This same company also had 22 TB Exos drives! I was going to order two of them, but when I tried, it failed, stating that they only had one left. Bummer. But other than that, I COULD NOT BE HAPPIER!! Read more

★★★★★

Worth every penny, so far so good

Christopher BrackettJune 4, 2025

Brand new per SMART, quiet enough, works great. No complaints so far, would buy again (and again) Read more

★★★★★

Good Value

BrianJuly 31, 2025

Well made , great price for 20 TB of space. Quiet as well easy to set up Read more

★★★★☆

Solid Quality but Cost Has Increased.

C. PettitNovember 4, 2025

I've purchased four of these in the past, and they've all arrived in good to great condition. I do have to deduct a star for the price increase though. If you're considering the cost per terabyte, there are similarly priced 22-24 TB options out there that you should at least take a look at. Read more

★★★★★

Holds up very well.

creamed knottyMay 17, 2025

Refurbished has been good to me so far. I have 4 of these in my synology NAS and after 1,2 and almost 3 years, no failures with daily use! Read more

★★★☆☆

Three stars for the price hike, otherwise five stars.

Manzur F.September 29, 2025

Purchased this in April 2025. Did a full surface write / read test like I do with every drive I purchase. Passed the test fine, and working fine so far, no issues. After formatting, you get about 18.1 TB size. Noise level not so much. Happy with the quality so far. Serverpartdeals ships the drive very securely, which is one of the MAIN reasons why I always buy my drives from them. It is a shame that they increased the price so much. 5* for the drive quality and shipping. But 3* for the price hike. Read more

★★★★★

Great drives for an awesome price!

ALINE techJanuary 19, 2025

Snagged a bunch of these for a new NAS; they're not even "renewed" - they are "factory recertified" (which I'm pretty sure is better from this specific seller). I'd just double check to ensure you're getting it from the popular one you think you are. Happy camper - saved literally thousands buying these. Read more

★★★★★

20 TB Harddrive

CustomerDecember 14, 2024

I'm doing a lot of Digital photos for sports and Church events and saving them. I needed a mass external storage unit to save the photos to I bought this drive to put in the external storage case. One that holds 2 hard drives 20 TB each for a total of 2 drives totaling the memory to 40 TB max. Read more

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