Seagate · NAS
ST12000NTZ01
IronWolf Pro 12TB
SATA 6 Gb/s · 3.5-inch · CMR
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An exact Amazon listing has not been verified for this model yet.
Compare alternatives ↓As an Amazon Associate I earn from qualifying purchases.The Seagate ST12000NTZ01 is a 12TB IronWolf Pro hard drive for NAS storage, using SATA 6 Gb/s in a 3.5-inch form factor.
Manufacturer specifications
| Model number | ST12000NTZ01 |
|---|---|
| Nominal capacity | 12 TB · 12000 GB |
| RPM | 7200 |
| Interface | SATA 6 Gb/s |
| Recording | CMR |
| Cache (MB) | 256 |
| Form factor | 3.5-inch |
| Power-on hours per year | 8760 |
| Workload rating (TB/year) | 550 |
| Average operating power (W) | 7.8 |
| Rotational vibration sensors | Yes |
| Manufacturer limited warranty | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 270 |
Source: Seagate IronWolf Pro manufacturer specifications, pages 2. Reviewed 2026-09-07. Published specifications, not our benchmark results.
What the specifications mean
- CMR recording is specified for this exact model. Check enclosure support and workload limits before installing it in an array.
- Up to 270 MB/s sustained transfer, as specified by the manufacturer. This is not a measured game-loading or random-I/O result.
- 550 TB/year workload rating. This is a workload limit, not a promise of drive lifespan or a backup guarantee.
- Rotational vibration sensors: Yes. Check the documented drive-bay limit for multi-drive enclosures.
Before ordering
Match ST12000NTZ01, 12TB and SATA 6 Gb/s against the selected offer. Check your system’s exact-model compatibility list and the seller’s warranty and return terms.
Amazon US listings
Exact model matches on Amazon.com. A verified ASIN identifies the product; it does not guarantee current stock. Check the selected variant, condition and seller.
No verified exact-model ASIN is linked yet. This does not establish whether the model is currently available. Compare the alternatives below and check their listings.
Same-capacity alternatives with Amazon US links
These models share the drive type, interface class and capacity. Compare their specifications and your system requirements before choosing a replacement.
Western Digital · WD Gold
WD122KRYZ
12TB · SATA 6Gb/s · CMR
Compare with ST12000NTZ01 →View on Amazon US ↗ASIN B0DF93LR3N · Check price and conditionWestern Digital · WD Red Pro
WD121KFBX
12TB · SATA 6Gb/s · CMR
Compare with ST12000NTZ01 →View on Amazon US ↗ASIN B07RTMPWD8 · Check price and conditionWestern Digital · WD Red Pro
WD122KFBX
12TB · SATA 6Gb/s · CMR
Compare with ST12000NTZ01 →View on Amazon US ↗ASIN B0FGY75FTX · Check price and conditionST12000NTZ01 questions answered
Is ST12000NTZ01 CMR or SMR?
The manufacturer lists CMR recording for ST12000NTZ01. Other models and capacities in the same family can differ.
What connection does ST12000NTZ01 need?
ST12000NTZ01 uses SATA 6 Gb/s and a 3.5-inch form factor. Match both with the computer, controller or enclosure. An M.2 slot, 2.5-inch bay and 3.5-inch bay are not interchangeable.
How much usable space does ST12000NTZ01 provide?
Its nominal capacity is 12000 GB, approximately 11175.9 GiB before formatting. The filesystem, reserved space and any RAID redundancy reduce usable capacity further.
What warranty is listed for ST12000NTZ01?
Manufacturer specification: 5 years (eligible new drives). A renewed, used, OEM or imported offer can have different coverage. Check the serial number and seller terms before buying.