Seagate Exos X24 20TB SATA
Current asking prices
Market signals
Derived from observed listings across all SKUs in this class.
▶What do OEM / Original / Compatible mean?
▶What do the signal colors mean?
Price by condition
Observed ranges split by drive condition. Recertified and pulled drives trade at significant discounts to new.
Market price confidence
The figures below reflect observed market pricing across multiple sellers and SKUs. Ranges and typical bands help distinguish outliers from defensible market prices.
Median: $817.995
12 listings • 1 SKU(s)
How to interpret this
- Prices within the typical market band represent common, defensible market rates.
- Listings near the lower bound may reflect limited stock, condition differences, or less-established sellers.
- Prices above the typical band often reflect vendor qualification, warranty, or support premiums.
Part numbers in this class
2 part numbers tracked. Not a guarantee of interchangeability — verify against your platform.
| Manufacturer | MPN | Certification | |
|---|---|---|---|
| Seagate | ST20000NM002H | Original | View SKU → |
| Supermicro | HDD-T20T-ST20000NM002H | OEM | View SKU → |
Risk & compatibility signals
Equivalent part numbers
Parts grouped into this market share the defining HDD market-class attributes. Exact platform, firmware, and OEM compatibility should still be verified.
OEM-qualified equivalents
- HDD-T20T-ST20000NM002H (Supermicro) — active
Original manufacturer equivalents
- ST20000NM002H (Seagate) — active
How to use this mapping
- If you were quoted any of the part numbers above, they correspond to this market.
- OEM-qualified parts offer the highest vendor support assurance and typically cost more.
- Original manufacturer parts often provide the best balance of cost and compatibility.
- Compatible alternatives may reduce cost but should be verified against platform policies.
Technical specifications
Seagate Exos X24 20TB helium SATA HDD, high-density 512e nearline drive
Latest-gen 20TB Exos, limited but increasing secondary availability
Other enterprise HDD market classes
Compare signals across Seagate Exos and WD Ultrastar capacity tiers.
▶How to interpret HDD market pricing
New vs pulled drives
Enterprise HDDs are sold new (sealed, full warranty) or as pulls — drives removed from decommissioned servers and JBODs. Pulls are functionally identical to new but carry no manufacturer warranty. Secondary market pricing for pulls typically runs 25–40% below new, depending on capacity tier and drive age.
SAS vs SATA premium
SAS drives command a premium over SATA equivalents due to dual-port redundancy and higher sustained workload ratings. In the secondary market, SAS drives are more common in refurbished channels because they were deployed in higher-end arrays (SAN, JBOD shelves) that see faster refresh cycles.
Helium-sealed drives
Drives above 10TB are almost universally helium-sealed to reduce friction and enable higher platter density. Helium drives have different failure characteristics than air-filled drives — they are generally reliable but a compromised seal accelerates failure. Inspect seller condition notes carefully for refurbished helium drives.
Capacity tier pricing
Price-per-TB generally improves at higher capacity points, but secondary market availability varies. Drives in the 14–18TB range often show the best secondary value: mature enough to have supply from hyperscale decommissions, but still relevant as active storage capacity.
Signals are observations from available data at a point in time — not advice. Verify independently before transacting. Disclaimer
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