Seagate Exos X16 14TB
14TB
Model ST14000NM001G
- rpm
- 7,200
- MB cache
- 256
- TB/yr
- 550
- yr warranty
- 5
Exos X16 range, also in 12 TB, 16 TB
Who the Exos X16 14 TB is for
It's at home in a rack or a garage, where 7,200 rpm of spinning rust can whirr away all day without bothering anyone. Seagate backs it for five years, which is a long time in drive terms.
Watch out for
It's a 7,200 rpm drive and you'll hear it working. CMR or SMR? Seagate's page we cite doesn't say.
On Backblaze's numbers it's neither better nor worse than the median, at 1.38% AFR with an interval that straddles 1.40%. Four of them in SHR or RAID 5 give 42 TB usable, or 38.2 TB once Windows has done its binary maths on it.
Specifications
Each value links to the Seagate page or datasheet it came from, and "Not published" means the maker doesn't list it there.
| Capacity | 14 TB | source for Capacity (seagate.com, opens in new tab) |
|---|---|---|
| Spindle speed | 7,200 rpm | source for Spindle speed (seagate.com, opens in new tab) |
| Recording technology | Not published | |
| Cache | 256 MB | source for Cache (seagate.com, opens in new tab) |
| Interface | SATA 6Gb/s | source for Interface (seagate.com, opens in new tab) |
| Form factor | 3.5in | source for Form factor (seagate.com, opens in new tab) |
| Workload rating | 550 TB/yr | source for Workload rating (seagate.com, opens in new tab) |
| MTBF / MTTF | 2,500,000 hours | source for MTBF / MTTF (seagate.com, opens in new tab) |
| Warranty | 5 years | source for Warranty (seagate.com, opens in new tab) |
Sources: seagate.com, seagate.com
Failure rate
Backblaze has 10,455 of them in service as ST14000NM001G. They've clocked up 57,467 drive-years between them and 795 have died, which puts the lifetime AFR at 1.38% (95% interval 1.29% to 1.48%, a range wide enough to include the 1.40% median).
Lifetime57,467 drive-yrs 1.38%1.29–1.48
2025 Q310,556 drives 1.43%1.01–1.96
2025 Q410,464 drives 1.28%0.89–1.79
2026 Q110,490 drives 0.81%0.50–1.24
2026 Q210,455 drives 1.50%1.07–2.05
Median lifetime AFR across Backblaze drive models: 1.40%
Source: Backblaze Drive Stats, lifetime to 2026 Q2. Bear in mind that's data-centre use, which is a lot harder on a drive than a home NAS will ever be.
Seagate Exos X16 14TBST14000NM001G