Seagate · PC / gaming
ST320DM000
Desktop HDD 0.32TB
SATA 6 Gb/s · 3.5-inch
Exact Amazon US product
$59.00
View on Amazon US ↗New listing · ASIN B005CT56F8
Price as of Sep 12, 2026 04:49 UTC
The Seagate ST320DM000 is a 0.32TB Desktop HDD hard drive for desktop and gaming storage, using SATA 6 Gb/s in a 3.5-inch form factor.
Manufacturer specifications
| Model number | ST320DM000 |
|---|---|
| Nominal capacity | 0.32 TB · 320 GB |
| Interface | SATA 6 Gb/s |
| Cache (MB) | 16 |
| Form factor | 3.5-inch |
| Average idle power (W) | 4.6 |
| Power-on hours per year | 2400 |
| Workload rating (TB/year) | 55 |
| Average operating power (W) | 6.2 |
| Manufacturer limited warranty | 2 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 144 |
Source: Seagate Desktop HDD manufacturer specifications, pages 3. Reviewed 2026-09-07. Published specifications, not our benchmark results.
What the specifications mean
- Up to 144 MB/s sustained transfer, as specified by the manufacturer. This is not a measured game-loading or random-I/O result.
- 55 TB/year workload rating. This is a workload limit, not a promise of drive lifespan or a backup guarantee.
Before ordering
Match ST320DM000, 0.32TB 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.
Amazon US · ASIN B005CT56F8
$59.00 · as of Sep 12, 2026 04:49 UTC
Amazon US · ASIN B005CT56F8
$34.00 · as of Sep 12, 2026 04:49 UTC
ST320DM000 questions answered
What connection does ST320DM000 need?
ST320DM000 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 ST320DM000 provide?
Its nominal capacity is 320 GB, approximately 298 GiB before formatting. The filesystem, reserved space and any RAID redundancy reduce usable capacity further.
What warranty is listed for ST320DM000?
Manufacturer specification: 2 years (eligible new drives). A renewed, used, OEM or imported offer can have different coverage. Check the serial number and seller terms before buying.