Seagate Exos X20 20TB
Seagate · MPN ST20000NM007D
NAS-Safe· 85
Why this NAS-Safe score? (85/100 — Excellent for NAS)▾
The NAS-Safe Score rates suitability for 24×7 multi-bay NAS / RAID use on a 0–100 scale. It is additive and fully transparent — every point is attributable to a named factor below. High confidence — all inputs verified.
- Recording technology35/35
CMR — safe for RAID rebuilds
- Vendor NAS endorsement0/15
Not marketed as a NAS-class drive
- Rotational-vibration sensors15/15
Has RV sensors for multi-bay stability
- Rated workload15/15
550 TB/yr — enterprise/Pro tier
- MTBF rating10/10
2.5M hr — enterprise reliability
- Warranty10/10
5-year warranty
Sources
- Seagate Exos enterprise product page (5yr, 2.5M-hr MTBF, helium) · verified 2026-06-02
Specs
- Capacity
- 20 TB
- Class
- ENTERPRISE
- Recording
- CMR
- RPM
- 7,200
- Cache
- 256 MB
- Form factor
- 3.5"
- Interface
- SATA 6Gb/s
- Warranty
- 5 years
- Workload
- 550 TB/yr rated
Use-case fit
- nas
- cold archive
- homelab
Live offers(2 retailers)
Price ratings compare a drive against its own price history and the other listings of that same drive — not against other drives. The $/TB badge is the cross-drive comparison. Neither is a compatibility or reliability recommendation.
- ↑ $100.00 (+16.7%)$699.95$35.00/TB
- —$759.00$37.95/TB
Prices snapshotted daily. See our scoring methodology.