1 drives tracked from $41.45/TB. Prices updated about once a day.
| Buy | Details | ||||||
|---|---|---|---|---|---|---|---|
| $41.45 Lowest $/TB | Seagate Exos X20 20TB SAS ST20000NM003D | 20TB SAS-12G | Not sourced | $829.00 | Refurb | Buy on Amazon | |
Part number:ST20000NM003D RPM:7200 Cache:— Sector:— Workload:— DWPD:— Form factor:3.5" Series:Exos X20 ASIN:B0H7YRJQVF Warranty:5 yr - seller claim, not the maker's This offer, in its own words (the seller's note is verbatim): This offer: sold by ServerPartDeals · Amazon says New / New · title says Renewed | |||||||
Guides for this capacity: best 20TB hard drive · the HDD price forecast · fill a NAS at today's prices
Every listing we track at this size - 3 product pages, including ones with no current offer. Out-of-stock pages carry specs and in-stock alternatives, never a stale price.
20TB SAS vs 20TB SATA → (coming soon)
MDD (MaxDigital Data) drives are rebranded enterprise mechanisms at steep discounts. They ship new with 5-year warranties and are identical internally to Seagate Exos or HGST Ultrastar.
Energy-assisted PMR (ePMR) is used by WD Ultrastar DC HC550+ for 18TB+. It is NOT shingled - ePMR is a CMR variant that uses current-assisted recording for higher density. Safe for all workloads.
14-20TB nearline SAS drives currently offer the best $/TB in enterprise storage. Larger capacities may have better density but carry a price premium per TB.
At 14TB+ there is often a SATA equivalent at lower cost. SAS is worth the premium if you need dual-port multipath, faster error recovery, or SAS expander backplanes.
1 in-stock listing out of 1 tracked; the cheapest is the Seagate Exos X20 20TB SAS at $829.00 ($41.45/TB). The table on this page is the live ranking.
All 1 in-stock listings are recertified or used, so the warranty comes from the seller rather than the manufacturer; each row shows its own claim.
None of the 1 tracked listings (including the Seagate Exos X20 20TB SAS) has a manufacturer-sourced recording value yet, so this page states none - an unsourced drive is never assumed CMR.
Monthly average of every listing tracked that month, new and used together. A level, not a price change: it moves when the mix of listings changes.
Get emailed when 20TB SAS drops below your target $/TB.
SAS enterprise HDDs suit nearline and backup workloads requiring dual-port multipath and high sustained throughput.