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Netac
Model: ZX1-1T
| Capacity | 1TB |
| Interface | USB 3.2 Gen 2x2 |
| Form Factor | External |
| Read Speed | 2,000 MB/s |
| Write Speed | 1,800 MB/s |
| Endurance (TBW) | 600 TB |
| Warranty | 3 Years |
A budget Gen 2x2 portable from Netac -- aggressive price vs the brand-name tier. The 1800 MB/s write rating is real but drops further on sustained workloads past the SLC cache. A valid budget pick for game-library overflow where peak sustained write does not matter.
See how it stacks up against competitors in our High-Speed Portable SSDs SSD comparison, or browse related SSD buying guides.
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The Netac Netac ZX1 Portable 1TB delivers 1.8 GB/s writes and 1TB capacity — pro-grade speed without the Thunderbolt price premium.
The Netac Netac ZX1 Portable 1TB harnesses USB 3.2 Gen 2×2 to deliver 2.0 GB/s reads and 1.8 GB/s writes — a fraction of the cost of Thunderbolt storage with comparable real-world throughput for most creative workflows.
Plug the Netac ZX1 Portable 1TB into any USB port and it works. For the full 20 Gbps, you need a Gen 2×2 host port — but even on standard USB 3.2 Gen 2, you get 10 Gbps of fast, reliable throughput.
A 20 Gbps port is mandatory for Gen 2x2 speeds. On standard USB-C (10 Gbps) the drive still works but tops out at roughly half the rated throughput.
The Netac ZX1 Portable 1TB targets users who need maximum throughput from an external drive. If you edit 4K or 6K video, move large project files between workstations, or work directly from external storage, the 2,000 MB/s read speed puts this drive in elite territory for a 1TB portable SSD.
The 1TB capacity covers most daily workflows comfortably: system backups, a working photo library, a dozen game installs, or a collection of documents and media. If you need more space, higher-capacity variants of the same product line are worth considering.
One important note: reaching the full 2,000 MB/s requires a USB 3.2 Gen 2x2 (20 Gbps) host port. On a standard USB 3.2 Gen 2 port, the drive still works perfectly but negotiates down to 10 Gbps. Most laptops from 2022 onward include a compatible port on premium models, but verify your hardware before expecting peak performance.
On paper, the Netac ZX1 Portable 1TB delivers 2,000 MB/s reads and 1,800 MB/s writes. In practice, a 50GB file — a typical 4K video project, a large game install, or a full photo shoot — transfers in ~28 seconds. A 100GB batch of raw files moves in ~56 seconds. 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.
The 2,000 MB/s peak is achievable for burst transfers, but sustained writes of 100GB or more will see speeds settle to approximately 1,530-1,620 MB/s as the controller manages thermals. This is normal for compact NVMe enclosures and does not affect everyday use — only continuous large-file writes are impacted.
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 $Netac ZX1 Portable 1TB feels similarly responsive to other fast portables for daily use. The real differentiator shows up during large file transfers, where the $2,000 MB/s read speed pulls noticeably ahead of slower SATA-based externals.
The $Netac ZX1 Portable 1TB is rated for $600 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 $33 years to reach its endurance limit. For typical use patterns involving backups, file transfers, and game storage, the $600 TBW rating provides comfortable headroom well beyond the $3-year warranty period.
| Spec | Netac ZX1 Portable 1TB | Samsung T9 Portable SSD |
|---|---|---|
| Read Speed | 2,000 MB/s | 2,000 MB/s |
| Write Speed | 1,800 MB/s | 1,950 MB/s |
| Capacity | 1TB | 1TB |
| Interface | USB 3.2 Gen 2x2 | USB 3.2 Gen 2x2 |
| Endurance | 600 TBW | 600 TBW |
| Score | 7.5/10 | 9.6/10 |
The Samsung T9 Portable SSD scores higher in our evaluation (9.6 vs 7.5/10). While the Netac ZX1 Portable 1TB has lower scoring, it may offer advantages in other areas like value. Review the full specifications above before deciding.
For a detailed head-to-head comparison, see our full Netac ZX1 Portable 1TB vs Samsung T9 Portable SSD comparison.
| Model | Capacity | Interface | Read | Write | TBW |
|---|---|---|---|---|---|
| Netac ZX1 Portable 1TB | 1TB | USB 3.2 Gen 2x2 | 2,000 | 1,800 | 600 |
| Samsung T9 Portable SSD | 1TB | USB 3.2 Gen 2x2 | 2,000 | 1,950 | 600 |
| Samsung T9 Portable 4TB | 4TB | USB 3.2 Gen 2x2 | 2,000 | 2,000 | 2,400 |
| Crucial X10 Pro Portable 4TB | 4TB | USB 3.2 Gen 2x2 | 2,000 | 2,000 | 2,400 |
Specs shown for the closest High-Speed Portable SSDs alternatives. Full comparison table available on the compare page.
The Netac ZX1 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.
Netac
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.