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HDD · SATA

Seagate Exos X20 18TB

Capacity
18TB
Connection
SATA
Hardware
3.5" HDD · CMR
Best available offer · 3 listings
$394.99
$21.94 / TB

Total includes shipping

UsedBuy on eBay →

prices last checked 2026-10-16 14:07 UTC

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deal rating
2 — Meh

uglyHD's price-history score 2.4 · five pumpkins is an amazing, off-the-chart deal · how it’s scored

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price history
Lowest / TB
$16.61
Median / TB
$17.78
Current / TB
$18.89
$15.21$19.42$23.622026-09-112026-10-16
2026-10-16$18.89 / TB
all listings
Marketplace listings for this drive
SourceConditionPriceShip$/TB
ebayUsed$394.99free$21.94Buy →
ebayRefurb$589.99free$32.78Buy →
ebayNew$617.00free$34.28Buy →
head to head
vs Toshiba MG09 18TB→vs Toshiba N300 18TB→vs WD Gold 18TB→vs WD Purple Pro 18TB→
cheaper per terabyte

Same interface and drive class, less money per terabyte.

Seagate Exos X12 12TB$14.17/TBWD Ultrastar DC HC510 8TB$15.63/TBSeagate IronWolf 10TB$15.99/TBToshiba MG07 14TB$16.50/TBHGST Ultrastar 7K4000 3TB$16.67/TBSeagate Constellation ES.3 2TB$17.50/TB
related drives
Seagate Exos X20 20TB SATAsame model, other capacity$19.75/TBSeagate Exos X18 18TB SATAother 18TB SATA drive$20.27/TBSeagate IronWolf Pro 18TB SATAother 18TB SATA drive$22.06/TBWD Ultrastar DC HC550 18TB SATAother 18TB SATA drive$22.22/TBToshiba MG09 18TB SATAother 18TB SATA drive$25.11/TB