Toshiba · Enterprise
MG09ACA18TA
MG09 18TB
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 Toshiba MG09ACA18TA is a 18TB MG09 hard drive for server and enterprise storage, using SATA 6 Gb/s in a 3.5-inch form factor.
Manufacturer specifications
| Model number | MG09ACA18TA |
|---|---|
| Nominal capacity | 18 TB · 18000 GB |
| RPM | 7200 |
| Interface | SATA 6 Gb/s |
| Recording | CMR |
| Cache (MiB) | 512 |
| Form factor | 3.5-inch |
| Sector format | 4Kn |
| Recording evidence | Manufacturer recording specification ↗ |
| Recording verified | 2026-10-02 |
| Workload rating (TB/year) | 550 |
| Manufacturer limited warranty | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 281 |
Source: Toshiba MG09 manufacturer specifications, pages 5. 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 281 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.
Before ordering
Match MG09ACA18TA, 18TB 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.
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Specifications & offers →View on Amazon US ↗ASIN B0CZM957F3 · Check price and conditionSeagate · Exos X18
ST18000NM000J
18TB · SATA 6 Gb/s · CMR
Specifications & offers →View on Amazon US ↗ASIN B08JV6PP9B · Check price and conditionSeagate · Exos X18
ST18000NM001J
18TB · SATA 6 Gb/s · CMR
Specifications & offers →View on Amazon US ↗ASIN B09FZNXQXR · Check price and conditionMG09ACA18TA questions answered
Is MG09ACA18TA CMR or SMR?
The manufacturer lists CMR recording for MG09ACA18TA. Other models and capacities in the same family can differ.
What connection does MG09ACA18TA need?
MG09ACA18TA 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 MG09ACA18TA provide?
Its nominal capacity is 18000 GB, approximately 16763.8 GiB before formatting. The filesystem, reserved space and any RAID redundancy reduce usable capacity further.
What warranty is listed for MG09ACA18TA?
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.