Seagate · Enterprise
ST12000NM008G
Exos X16 12TB
SAS 12 Gb/s · 3.5-inch
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Compare alternatives ↓As an Amazon Associate I earn from qualifying purchases.The Seagate ST12000NM008G is a 12TB Exos X16 hard drive for server and enterprise storage, using SAS 12 Gb/s in a 3.5-inch form factor.
Manufacturer specifications
| Model number | ST12000NM008G |
|---|---|
| Nominal capacity | 12 TB · 12000 GB |
| RPM | 7200 |
| Interface | SAS 12 Gb/s |
| Cache (MB) | 256 |
| Form factor | 3.5-inch |
| Average idle power (W) | 5 |
| Power-on hours per year | 8760 |
| Manufacturer limited warranty | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 233 |
Source: Seagate Exos X16 manufacturer specifications, pages 3. Reviewed 2026-09-07. Published specifications, not our benchmark results.
What the specifications mean
- Up to 233 MB/s sustained transfer, as specified by the manufacturer. This is not a measured game-loading or random-I/O result.
Before ordering
Match ST12000NM008G, 12TB and SAS 12 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.
Toshiba · MG09
MG09SCA12TE
12TB · SAS 12 Gb/s
Compare with ST12000NM008G →View on Amazon US ↗ASIN B0DF5Q81MD · Check price and conditionSeagate · Exos X18
ST12000NM004J
12TB · SAS 12 Gb/s
Compare with ST12000NM008G →View on Amazon US ↗ASIN B09YRZ1JPC · Check price and conditionSeagate · Exos X24
ST12000NM007H
12TB · SAS 12 Gb/s
Compare with ST12000NM008G →View on Amazon US ↗ASIN B0CTRTSK7L · Check price and conditionST12000NM008G questions answered
What connection does ST12000NM008G need?
ST12000NM008G uses SAS 12 Gb/s. It needs a compatible SAS controller or backplane; a standard motherboard SATA port cannot run it.
How much usable space does ST12000NM008G 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 ST12000NM008G?
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.