Drive comparison
ST16000NE000 vs HDWG81GXZSTB
Seagate IronWolf Pro 16TB and Toshiba N300 Pro 16TB, compared using published manufacturer specifications.
Seagate
IronWolf Pro 16TB
ST16000NE000
SATA 6 Gb/s · 3.5-inch
$634.16
Amazon US · New listing ↗ASIN B07SJTST6T · as of Sep 12, 2026 11:43 UTC
Full specifications & all listings →Toshiba
N300 Pro 16TB
HDWG81GXZSTB
SATA 6 Gb/s · 3.5-inch
Check current Amazon price
Amazon US · Verified product · check availability and condition on Amazon ↗ASIN B0H1NC62DB
Full specifications & all listings →As an Amazon Associate I earn from qualifying purchases. Match the selected variant, condition and seller terms before ordering.
What differs between these models?
- Cache (MB): ST16000NE000 lists 256; HDWG81GXZSTB lists 1024.
- Workload rating (TB/year): ST16000NE000 lists 300; HDWG81GXZSTB lists 550.
- Average operating power (W): ST16000NE000 lists 7.6; HDWG81GXZSTB lists 6.94.
- Sustained transfer (up to MB/s): ST16000NE000 lists 255; HDWG81GXZSTB lists 294.
A larger cache, higher RPM or higher advertised sequential speed alone does not establish which drive is better for your workload.
Specifications side by side
| Specification | ST16000NE000 | HDWG81GXZSTB |
|---|---|---|
| Manufacturer | Seagate | Toshiba |
| Product family | IronWolf Pro | N300 Pro |
| Model number | ST16000NE000 | HDWG81GXZSTB |
| Capacity (TB) | 16 | 16 |
| RPM | 7200 | 7200 |
| Interface | SATA 6 Gb/s | SATA 6 Gb/s |
| Recording | CMR | CMR |
| Cache (MB) | 256 | 1024 |
| Form factor | 3.5-inch | 3.5-inch |
| Power-on hours per year | 8760 | Not recorded |
| Workload rating (TB/year) | 300 | 550 |
| Average operating power (W) | 7.6 | 6.94 |
| Rotational vibration sensors | Yes | Yes |
| Manufacturer limited warranty | 5 years (eligible new drives) | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 255 | 294 |
| NAS bays | Not recorded | 24 |
| Sector format | Not recorded | 512e |
| Idle power (W) | Not recorded | 3.66 |
| Package / region | Not recorded | US retail; manufacturer-documented bulk package alias |
Compatibility and buying checks
- Check sector-format support in the controller and operating system, particularly for native 4K (4Kn) variants.
- Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.
Manufacturer sources
ST16000NE000
Seagate IronWolf Pro manufacturer specifications ↗ · pages 3
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.
HDWG81GXZSTB
Toshiba N300 Pro US datasheet TAEC-2839-R2.0, July 2026 ↗ · pages 4, 7
Reviewed 2026-09-08. Published specifications; no independent benchmark or failure-rate claim.