The Seagate Exos X20 20TB is a 20TB SATA-6G HDD in used condition. It has no current offer on Amazon. The in-stock alternatives nearest its capacity are listed below.
6 in-stock listings · this listing has no current offer on Amazon · ranked by live cost per tb, refreshed about once a day
| Drive | Capacity | Interface | Recording | Condition | $/TB | Price | |
|---|---|---|---|---|---|---|---|
| Seagate IronWolf Pro 16TB NAS ST16000NE000 ST16000NE000 | 16TB | SATA-6G | — | NEW | $46.13 | $738 | Buy on Amazon |
| Synology HAT5300 16TB NAS HAT5300-16T | 16TB | SATA-6G | — | REFURB | $48.91 | $782 | Buy on Amazon |
| Seagate Exos X24 24TB SATA ST24000NM000H | 24TB | SATA-6G | — | NEW | $52.70 | $1265 | Buy on Amazon |
| Seagate SkyHawk AI 16TB ST16000VE002 ST16000VE002 | 16TB | SATA-6G | CMR | NEW | $52.81 | $845 | Buy on Amazon |
| WD Red Pro 24TB WD241KFGX WD241KFGX | 24TB | SATA-6G | CMR | NEW | $54.69 | $1313 | Buy on Amazon |
| WD Red Pro 16TB NAS | 16TB | SATA-6G | — | NEW | $59.05 | $945 | Buy on Amazon |
Where this listing sits: every 20TB hard drive · 20TB SATA drives · Seagate 20TB SATA — each page is the live ranking for that slice of the catalogue.
Part number: ST20000NM007D — decoded, with sibling variants and the warranty check.
Recertified enterprise drives are pulled from datacentre fleets, tested and resold. They are usually the cheapest route to bulk capacity, and the risk is concentrated in the first weeks - so check SMART data the day it arrives rather than the day you need it. What recertified means · Refurbished warranty terms · Verify on arrival
| Drive | Interface | Cond | $/TB | Price | |
|---|---|---|---|---|---|
| WD Ultrastar 20TB SATA WUH722020ALE604 | SATA-6G | Refurb | $31.50 | $630.00 | Buy on Amazon |
| WD Red Pro 20TB WD202KFGX | SATA-6G | Refurb | $41.55 | $830.96 | Buy on Amazon |
| Seagate SkyHawk AI 20TB ST20000VE003 | SATA-6G | New | $44.00 | $879.99 | Buy on Amazon |
| WD Ultrastar 20TB SATA WUH722020CLE6L4 | SATA-6G | New | $49.01 | $980.13 | Buy on Amazon |
All 20TB drives we track, ranked by cost per terabyte.
CMR or SMR? What we can and cannot source for this part number
Part of the Seagate line we track.
The Seagate Exos X20 20TB is a 20TB SATA-6G enterprise drive - CMR recording makes it safe for all RAID levels and NAS deployments. As a refurbished unit, run SMART diagnostics on arrival and verify power-on hours.
We do not have enough in-stock comparators of this type today to place this price against the rest of the market. The category page below ranks everything we do have.
These are third-party figures about the retail market as a whole, quoted and dated. They are not our own measurements and they do not describe this specific drive.
Resolved against manufacturer compatibility lists we read and dated, capped at 4. Vendor-listed means the manufacturer names this exact part number; fit-verified is our own check of form factor, interface and recording technology against a published requirement. Neither is a guess, and a drive the registry cannot resolve shows nothing here rather than a maybe. How compatibility actually works
Not right now: Amazon shows no current offer for ASIN B0DFZ573X3. The in-stock alternatives nearest its 20TB capacity are on this page, ranked by live price.
The listing's own title says "renewed" for the ST20000NM007D. That is the seller's claim; we store it verbatim and the warranty is the reseller's, not the manufacturer's. The stored warranty on this row is 5 years, as the listing states it.
The ST20000NM007D's stored recording technology is CMR (manufacturer-sourced), which rebuilds predictably in RAID.