Seagate
Seagate Exos X18 Spec and Price in Italy
SATA16TB7200 RPM
Exos X18 is Seagate's 16-18TB enterprise nearline drive: 7200rpm, 256MB of cache, a 550TB/year workload rating, and a five-year warranty, per the Seagate data sheet. It is CMR with enterprise firmware tuned for multi-drive arrays and high-density data centers — the same mechanics that later generations (X20, X24) kept while raising capacity. For a workstation or home server it is simply the reliable way to get 16-18TB on SATA.
Current best price
No tracked price — this page compares specifications alone.
Specifications
- Capacity
- 16TB
- Interface
- SATA
- Sequential read
- 270 MB/s
- Sequential write
- 270 MB/s
- Rotation speed
- 7200 RPM
- Form factor
- 3.5-inch
- Cache
- 256 MB
- Warranty
- 5 years
Capacities
| Configuration | Part number |
|---|---|
| 16TB | ST16000NM000J |
| 18TB | ST18000NM000J |
Guides for this category
How much hard drive you actually needWhat a mechanical drive is still for beside an SSD, how to size it for the pile you are offloading, and why a cheap high-capacity drive can be slow.Portable vs desktop hard driveWhat the enclosure decides between a bus-powered 2.5-inch drive and a mains-powered 3.5-inch one, and why an external listing carries fewer numbers.
What owners and reviewers say
Summarised from 1 source(s), reviewed September 13, 2026. A source is counted only where it names this model exactly. How we track prices
Commonly praised
- Praised for a solid warranty and a reasonable range of capacities, making the older drives cost-effective.
Commonly criticised
- Uses older technology, meaning lower capacities and worse data density, with less cache that can reduce performance.
Sources behind this summary
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.