Seagate Exos X18 12TB 7200RPM SAS 12Gb/s 512e 3.5-inch Enterprise Hard Drive
By: Seagate
Starting from
$280
Indicative — final pricing confirmed with your quote.
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Product overview
The 12TB is the entry capacity in Seagate's Exos X18 range, which spans 12TB to 18TB across 4 capacity points. Helium-sealed nearline SAS capacity drive for bulk AI datasets and backup tiers.
It attaches over 12Gb/s SAS in the 3.5" LFF form factor. The platters spin at 7200 RPM behind a 256 MB cache.
Featuring
- Product Line
- Exos
- Product Series
- X18
- Cache Storage
- 256 MB
- Disk Format
- 512e
Interfaces / Ports
- Spindle Speed
- 7200 RPM
- Drive Interface
- SAS
- Interface Standard
- 12Gb/s SAS
Physical characteristics
- Product Type
- Hard Drive
- Drive Type
- Internal
- Drive Width
- 3.5"
- Form Factor
- LFF
Miscellaneous
- Compliance Standards
- RoHS, WEEE
- Expedited shipping options are available — rates confirmed with your quote.
- Purchase orders accepted from qualified institutions.
- Compatibility is validated against your server platform before dispatch. Send us the model and we will confirm support.
Full published specifications for the Seagate Exos X18 12TB 7200RPM SAS 12Gb/s 512e 3.5-inch Enterprise Hard Drive, as supplied. Confirm your backplane presents 12Gb/s SAS and that the platform supports SAS before ordering — compatibility validation against your specific server model is part of every order.
Where the Exos X18 12TB is deployed
- Read-heavy tiers: dataset staging, repositories and boot volumes
- Capacity expansion into free 3.5" LFF bays
- Like-for-like replacement and spares holding for deployed fleets
- New build-outs standardised on 12Gb/s SAS
Questions buyers ask about this part
- Will the 12TB Exos X18 fit my server?
- This is a 3.5" LFF part on 12Gb/s SAS. It fits any bay wired for 12Gb/s SAS. Send us your server model and we will confirm backplane support, firmware level and any bracket or caddy required before you order — that check is part of every order we ship.
- Should I take the 12TB or the 14TB?
- They are the same drive with different capacity: identical 12Gb/s SAS, 3.5" LFF and endurance rating. The 14TB gives you 1.2x the capacity per bay. Where bays are the constraint — a full backplane, or a rack you cannot grow — the larger capacity is usually cheaper per usable terabyte once you count the chassis it saves. Ask us for both on one quote and compare.
- Is this Seagate part genuine, and is the warranty intact?
- Yes. We supply through authorized distribution only, so the part carries the full Seagate manufacturer warranty and its firmware update path stays supported. No grey-market stock, no re-labelled drives, no voided warranties.
- Do you offer volume pricing and accept purchase orders?
- The listed price is per unit and indicative; tiered pricing applies at quantity. We accept purchase orders from qualified businesses, government and defence agencies, and educational institutions, with net terms and consolidated invoicing available. Email the quantity you need and we will come back within 48 business hours.
Other capacities in the Seagate Exos X18 range
| Model | Part number | Availability | From |
|---|---|---|---|
| Seagate Exos X18 14TB 7200RPM SAS 12Gb/s 512e 3.5-inch Enterprise Hard Drive | — | In Stock | $320 |
| Seagate Exos X18 16TB 7200RPM SAS 12Gb/s 512e 3.5-inch Enterprise Hard Drive | — | In Stock | $360 |
| Seagate Exos X18 18TB 7200RPM SAS 12Gb/s 512e 3.5-inch Enterprise Hard Drive | ST18000NM004J | In Stock | $390 |
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