ST12000NM000J
Seagate Exos X18 · 12TB
CMR
✓ RAID-safe (CMR)
EOL - no longer sold
End of life - no longer sold new.
Specifications
- Capacity
- 12 TB
- Technology
- CMR
- Class
- Enterprise
- RPM
- 7200
- Cache
- 256 MB
- Noise (idle / seek)
- -
- Fill
- Helium
- Interface
- SATA
- Form factor
- 3.5"
- Data confidence
- High
Reliability
Annualized failure rate
0.41%
Sample size1,087 drives
Drive-days444,469
Source: Backblaze thru Q1 2026. All rankings →
Warranty5 years
Rated workload550 TB/yr
MTBF2,500,000 hrs
Enterprise nearline drive for datacenter-scale 24/7 workloads.
Manufacturer-rated specs (Manufacturer spec), not observed failure data.
Price history
No CA price history yet - we start tracking once this drive has a CA price.