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Seagate
Model: STKS2000400
| Capacity | 2TB |
| Interface | USB 3.2 Gen 2 |
| Form Factor | External |
| Read Speed | 1,030 MB/s |
| Write Speed | 1,030 MB/s |
| Endurance (TBW) | 1,200 TB |
| Warranty | 3 Years |
The 2TB One Touch is the sweet spot of Seagate's budget portable line — large enough die stack that the sustained-write dropoff after SLC exhaustion is significantly longer than on the 1TB.
See how it stacks up against competitors in our USB-C External SSDs SSD comparison, or browse related SSD buying guides.
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The Seagate One Touch SSD 2TB: 2TB, 1.0 GB/s reads, 1.0 GB/s writes, and a price that makes it an easy choice for daily backups and file transport.
With 1.0 GB/s reads and 1.0 GB/s writes over a USB-C connection, the Seagate One Touch SSD 2TB delivers reliable performance for daily computing needs. Backing up documents, transferring photos from a laptop to a desktop, or storing a media library — it handles routine tasks with consistent speed.
2TB of storage provides generous headroom for everyday files. The compact, lightweight design slips into any bag pocket. 1,200 TBW endurance positions this as pro-grade — built for daily rewrite cycles without degradation. The 3-year warranty provides standard coverage for the expected lifespan of the drive.
With 2TB of space, this drive doubles as both active project storage and a backup destination. The cost-per-GB at this capacity makes it practical for media libraries.
This speed range is typical of a SATA SSD running over USB — noticeably faster than any HDD, but well below what NVMe drives achieve over Gen 2x2 or Thunderbolt.
In the speed hierarchy, the Seagate One Touch SSD 2TB sits above HDDs and below NVMe. Think of it as a SATA SSD in your pocket — fast enough for 95% of daily tasks at a fraction of the cost of the fastest USB drives.
The Seagate One Touch SSD 2TB is a solid all-around 2TB portable SSD for everyday use. If you need fast backups, reliable file transport between devices, or external storage for documents, photos, and media, the 1,030 MB/s reads deliver performance that makes daily tasks feel instant compared to an external hard drive.
At 2TB, this drive hits the sweet spot for users with substantial storage needs. Photo and video libraries, game collections, and professional project files all benefit from the headroom — you will not be juggling free space or swapping files between drives.
The USB 3.2 Gen 2 interface means the Seagate One Touch SSD 2TB hits full speed on virtually any modern USB-C or USB-A port — no special hardware required. Plug it into a laptop, desktop, game console, or tablet and you get the same 1,030 MB/s performance without compatibility concerns.
On paper, the Seagate One Touch SSD 2TB delivers 1,030 MB/s reads and 1,030 MB/s writes. In practice, a 50GB file — a typical 4K video project, a large game install, or a full photo shoot — transfers in ~49 seconds. A 100GB batch of raw files moves in ~2 minutes. For users who regularly shuttle large files, these transfer times are a meaningful productivity improvement over slower SATA-based externals that take 3-5x longer for the same tasks.
Sequential read and write speeds — the numbers manufacturers advertise — matter most when transferring single large files. For everyday tasks like opening documents, browsing photos, running applications from the drive, or loading games, random 4K performance is more relevant. All NVMe-based external SSDs deliver random IOPS in the same general range, so the $Seagate One Touch SSD 2TB feels similarly responsive to other fast portables for daily use. The real differentiator shows up during large file transfers, where the $1,030 MB/s read speed pulls noticeably ahead of slower SATA-based externals.
The $Seagate One Touch SSD 2TB is rated for $1,200 TBW (terabytes written) endurance. To put that in perspective: if you write 50GB per day — an aggressive daily workload for most users — the drive would take approximately $66 years to reach its endurance limit. For typical use patterns involving backups, file transfers, and game storage, the $1,200 TBW rating provides comfortable headroom well beyond the $3-year warranty period.
| Spec | Seagate One Touch SSD 2TB | Samsung T9 2TB |
|---|---|---|
| Read Speed | 1,030 MB/s | 2,000 MB/s |
| Write Speed | 1,030 MB/s | 2,000 MB/s |
| Capacity | 2TB | 2TB |
| Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2x2 |
| Endurance | 1,200 TBW | 1,200 TBW |
| Score | 7.8/10 | 9.6/10 |
The Samsung T9 2TB scores higher in our evaluation (9.6 vs 7.8/10). It also delivers faster reads (2,000 vs 1,030 MB/s).
For a detailed head-to-head comparison, see our full Seagate One Touch SSD 2TB vs Samsung T9 2TB comparison.
| Model | Capacity | Interface | Read | Write | TBW |
|---|---|---|---|---|---|
| Seagate One Touch SSD 2TB | 2TB | USB 3.2 Gen 2 | 1,030 | 1,030 | 1,200 |
| Samsung T9 2TB | 2TB | USB 3.2 Gen 2x2 | 2,000 | 2,000 | 1,200 |
| Samsung T9 Portable SSD | 1TB | USB 3.2 Gen 2x2 | 2,000 | 1,950 | 600 |
| Crucial X10 Pro 2TB | 2TB | USB 3.2 Gen 2x2 | 2,000 | 2,000 | 1,200 |
Specs shown for the closest USB-C External SSDs alternatives. Full comparison table available on the compare page.
The Seagate One Touch comes in multiple capacities. Smaller sizes save money if you do not need the headroom; larger sizes drop the cost-per-TB for media libraries and Time Machine backups.
Seagate
Price as of Jul 3, 2026, 4:11 AM. Prices and availability are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
Seagate
Price as of Aug 3, 2026, 6:33 PM. Prices and availability are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
Seagate
Price as of Aug 3, 2026, 6:33 PM. Prices and availability are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
Seagate
Price as of Aug 3, 2026, 6:33 PM. Prices and availability are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.