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Seagate Exos 20TB — Price Guide & Live Deals

Live Seagate Exos 20TB deals on eBay: used, refurbished and new drives, what a fair asking price looks like, and which interface and models to avoid.

Right now: New prices climbing (+9.4% / 90d), 8 current qualifying listings.

Median ask
$1,094
New · n=5
Listings now
8
qualifying right now
90-day New median trend
+9.4%
vs 90 days ago

Current qualifying listings

As an eBay Partner, CresvaMent may be compensated if you make a purchase through the eBay links on this page. CresvaMent is not affiliated with eBay.

Seagate Exos X20 ST20000NM007D 20TB Hard Drive Internal SATA/600 7200rpm
Seagate Exos X20 ST20000NM007D 20TB Hard Drive Internal SATA/600 7200rpm
ebayNew

$1,281.66 USD

Free shipping

★ 99.5% · 136,237 ratings

Listed yesterday · checked yesterday

Seagate ST20000NM007H EXOS X24 20TB 7.2K 512E/4KN SAS 12G LFF 3.5 HDD
Seagate ST20000NM007H EXOS X24 20TB 7.2K 512E/4KN SAS 12G LFF 3.5 HDD
ebayNew

$1,093.98 USD

Free shipping

★ 99.1% · 2,282 ratings

Listed yesterday · checked yesterday

Seagate ST20000NM007H EXOS X24 20TB 7.2K 512E/4KN SAS 12G LFF 3.5 HDD
Seagate ST20000NM007H EXOS X24 20TB 7.2K 512E/4KN SAS 12G LFF 3.5 HDD
ebayNew

$1,093.98 USD

Free shipping

★ 99.1% · 2,277 ratings

Listed 2 days ago · checked 2 days ago

Seagate Exos X22 20TB Enterprise HDD 3.5" SATA 7200RPM ST20000NM004E - Used
Seagate Exos X22 20TB Enterprise HDD 3.5" SATA 7200RPM ST20000NM004E - Used
ebayUsed

$399.00 USD

Free shipping

★ 100% · 528 ratings

Listed 3 days ago · checked 3 days ago

Seagate 3.5" EXOS X22 20TB SATA III 6Gbps HDD STL024
Seagate 3.5" EXOS X22 20TB SATA III 6Gbps HDD STL024
ebayUsed

$399.99 USD

Free shipping

★ 99.6% · 3,392 ratings

Listed 3 days ago · checked 3 days ago

SEAGATE ST20000NM007H EXOS X24 20TB 7.2K 512E/4KN SAS 12G LFF 3.5 HDD
ebayNew

$1,093.98 USD

Free shipping

★ 99.1% · 2,273 ratings

Listed 3 days ago · checked 3 days ago

Dell EMC Seagate Exos X20 20TB 3.5in SAS 12Gbps 7200RPM Internal HDD
Dell EMC Seagate Exos X20 20TB 3.5in SAS 12Gbps 7200RPM Internal HDD
ebayNew

$784.95 USD

Free shipping

★ 100% · 544 ratings

Listed 5 days ago · checked yesterday

ST20000NM002D Seagate Exos X20 20TB 7200 RPM SAS 12Gb/s 256MB 3.5" Internal HDD
ST20000NM002D Seagate Exos X20 20TB 7200 RPM SAS 12Gb/s 256MB 3.5" Internal HDD
ebayUsed

$525.00 USD

+$6.19 shipping

★ 100% · 117 ratings

Seagate Exos 20TB · 10/24/2026 5:32 PM

Roughly one qualifying listing every 1 days.

Asking-price ranges by condition

Condition Min 25% Median 75% Max N
UsedLow sample size $399.00 $399.00 $399.99 $525.00 $525.00 3
RefurbishedLow sample size $475.00 $475.00 $475.00 $475.00 $475.00 1
New $784.95 $1,093.98 $1,093.98 $1,093.98 $1,281.66 5

Asking prices of currently-active listings. Not sold-price data. Rows marked "low sample size" have fewer than 5 listings, so one outlier can move them a lot.

90-day New median trend
+9.4%
vs 90 days ago

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How we filter

Every feed has its own filter, tuned by hand for this one part. Before any change goes live, those filters are tested against thousands of real eBay listing titles. Every night, each feed is checked against every other deal page in its category, so a listing for a different part that slips in gets flagged and fixed instead of quietly shown.

Of the 37 listings we observed for this game in the last 30 days, we filtered out 8 of 37 (~22%) for quality reasons. The remaining 29 are what we'd actually surface.

  • 3 shipped from a region we exclude
  • 3 caught by a junk-listing guard
  • 1 seller had too few feedback ratings
  • 1 seller positive-feedback percentage too low

What the feed excludes

An eBay search for Seagate Exos 20TB returns far more than the part itself: laptop chips, mining rigs, coolers, empty boxes and whole PCs all mention it in their titles. These are the 42 terms we filter out to keep this feed to the real thing. A listing whose title contains any of them never reaches the feed, the price table or an alert. Many look unrelated to Seagate Exos 20TB because they are: that's the noise.

Other models & look-alikes 31
  • -riser
  • -extender
  • -caddy
  • -sled
  • -screw
  • -screws
  • -thermal pad
  • -read description
  • -see description
  • -combo
  • -2pcs
  • -3pcs
  • -4pcs
  • -5pcs
  • -6pcs
  • -8pcs
  • -10pcs
  • -synology
  • -qnap
  • -x20z
  • -hsmr
  • -host managed
  • -compatible
  • -stand
  • -mug
  • -smr
  • -nas
  • -18tb
  • -16tb
  • -22tb
  • -24tb
Broken, untested & empty listings 4
  • -as-is
  • -untested
  • -not tested
  • -dead
Lots & multi-item listings 1
  • -bundle
Accessories, merch & paper 6
  • -bracket
  • -cable
  • -adapter
  • -enclosure only
  • -tray only
  • -sticker

How often qualifying deals appear

  • 10 in the last 7 days (~1.43/day)
  • 29 in the last 30 days (~0.97/day)
  • 29 in the last 90 days (~0.32/day)

Exos 20TB: buyer & reseller spec sheet

Exact SKU identity. "Exos 20TB" covers several generations (X20, X22, X24) and several part numbers. The model number on the drive label, such as ST20000NM007D, pins down the exact drive, so match it against the seller's photo of the label instead of trusting the title alone.

Variants & value impact. The interface matters more than the asking price. Many 20TB Exos drives are SAS, which needs an HBA or a SAS-capable backplane and will not work on a standard SATA motherboard port. The same capacity is also sold as SATA. Confirm which one you are buying before comparing asking prices. Dell, HP and other OEM-labelled units belong to the same family but can carry vendor firmware.

Listing traps. The Exos X20z is a host-managed shingled (SMR) model. It needs operating-system and file-system support, and is a poor fit for a general NAS or desktop. The feed filters out titles naming it, but check the label if a title only gives a capacity. Also watch for titles that call a drive "compatible" with a Seagate part number rather than being one.

Buying a used SSD: what to check

These checks apply to every drive on our storage pages. The item notes above cover what is specific to this drive.

Used

  • Ask for a screenshot of the drive's health readout (SMART data): health percentage, total data written and power-on hours.
  • Confirm the reported capacity matches the label. Fake high-capacity drives exist.
  • Ask whether it was wiped. You should wipe it again yourself either way.

Refurbished

  • Find out the warranty and whether the health readout was reset or replaced.

New

  • Check the box is sealed and register the serial for warranty as soon as it arrives.

FAQ

How much is Seagate Exos 20TB worth right now?
CresvaMent's daily eBay index puts the median asking price for Seagate Exos 20TB in New condition at $1,094 across 5 active US listings (November 6, 2026 snapshot). Asking prices, not sold prices.
How do I get notified when a new Seagate Exos 20TB listing comes in under my price?
Live eBay listings for Seagate Exos 20TB are at cresvament.com/deals/storage/seagate-exos-20tb, and CresvaMent can alert you by Discord or email when a new one is listed under your max price (free for one tracker).
How often do qualifying deals appear?
In the trailing 30 days, 29 qualifying listings appeared — roughly 0.97 per day.

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Data freshness: last snapshot 2026-11-06 00:00 UTC . Atom feed

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