Used
$26.72/TB
16TBSATA
Seagate ST16000NM000J 16TB SATA 6Gb/s 3.5" HDD Enterprise Tested
Seagate
$427.46
1 leftSeagateSATA16TB3.5 in
Seagate Exos X18 16TB SATA (ST16000NM000J)Specs, test results and price
1 in stock from $427.46 · 1 units tested in-house
In stock now (1)
About the ST16000NM000J
The Seagate Exos X18 (ST16000NM000J) is a 16TB SATA hard drive built in the 3.5 inch form factor, using the SATA 6Gb/s interface. This part number is designed for nearline and bulk storage roles where high capacity and standard SATA connectivity are the primary requirements, such as backup targets, archival pools, and general file storage in servers or storage arrays that support 3.5 inch SATA drives.
Each unit of this model offered here has gone through the same testing process before listing. One unit has been tested and passed, with recorded power-on hours of 35,746, placing it in the Standard Use tier (20,000 to 40,000 hours). Sequential benchmark results on the tested unit showed a median read speed of 269 MB/s and a median write speed of 271 MB/s.
Because this is a used drive, every unit is checked individually rather than assumed to match a spec sheet. The testing and sanitize process below applies to each drive sold under this part number, and the usage tier reflects the actual power-on hours logged on the unit you receive.
Specifications
| Brand | Seagate |
|---|---|
| Part number | ST16000NM000J |
| Type | Hard drive |
| Capacity | 16TB |
| Interface | SATA 6Gb/s |
| Form factor | 3.5 in |
Tested units
- Units tested
- 1
- Pass rate
- 100% (1 of 1)
- Power-on hours, median
- 35,746 h
- Power-on hours, range
- 35,746 to 35,746 h
- First tested
- Aug 25, 2026
- Last tested
- Aug 25, 2026
- Sequential read, median
- 269 MB/s
- Sequential write, median
- 271 MB/s
Every unit of this model we have handled, from our test database. What we test
Hours distribution
- Standard Use 20,000-40,000 hrs1 unit · 100%
Units by usage tier, from their SMART power-on hours. How tiers work
Recent unit reports
Every unit we sell gets a permanent public report. Serial and seal numbers stay on the certificate in the box.
| Unit | Tier | Power-on hours | Tested | Result | Report |
|---|---|---|---|---|---|
| U-98 | Standard Use | 35,746 | Aug 25, 2026 | Pass | View report for unit U-98 |
ST16000NM000J questions
What is the Seagate Exos X18 ST16000NM000J typically used for?+
This 16TB SATA drive is suited to bulk and nearline storage tasks such as backups, archival data, and general file storage in servers or arrays that accept 3.5 inch SATA drives. It is not a specialty drive for a particular workload beyond general capacity storage.
What interface and physical format does this drive use?+
It uses the SATA 6Gb/s interface in a 3.5 inch form factor, so it will work in any system or enclosure built for standard 3.5 inch SATA hard drives.
What does testing check on each unit before it is sold?+
Each drive undergoes a sequential and random read/write benchmark, a full extended self-test across the entire surface, a SMART health read covering reallocated, pending, and uncorrectable sectors, and a cross-check of power-on hours against an independent on-drive log. Drives are also sanitized to the NIST 800-88 standard with read-back verification.
What does the Standard Use tier mean for this drive?+
Standard Use covers drives with recorded power-on hours between 20,000 and 40,000. The one unit tested for this part number has 35,746 power-on hours, which places it in this tier.
Can I expect consistent performance across units of this model?+
Benchmark results are recorded per unit, and for the tested drive the median sequential read and write speeds were 269 MB/s and 271 MB/s respectively. Since only one unit has been tested so far, this figure reflects that unit rather than a guaranteed average across all stock.