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Lexar
Model: LXES100-1TRNN
| Capacity | 1TB |
| Interface | USB 3.2 Gen 2 |
| Form Factor | External |
| Read Speed | 950 MB/s |
| Write Speed | 950 MB/s |
| Endurance (TBW) | 600 TB |
| Warranty | 3 Years |
A brushed-aluminum portable SSD the size of a credit card -- one of the smallest 1TB Gen 2 SSDs in retail. Buy it for the form factor; the 950 MB/s rating undershoots the full 1050 Gen 2 ceiling.
See how it stacks up against competitors in our Ultra-Portable SSDs SSD comparison, or browse related SSD buying guides.
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Reliable 1TB storage with 950 MB/s reads — the Lexar SL100 Pro Portable 1TB is a practical, affordable choice for daily backups and file transport.
With 950 MB/s reads and 950 MB/s writes over a USB-C connection, the Lexar SL100 Pro Portable 1TB 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.
1TB of storage provides generous headroom for everyday files. The compact, lightweight design slips into any bag pocket. Rated at 600 TBW, this drive handles a solid mix of daily reads and writes. The 3-year warranty provides standard coverage for the expected lifespan of the drive.
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 Lexar SL100 Pro Portable 1TB 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 Lexar SL100 Pro Portable 1TB is a solid all-around 1TB portable SSD for everyday use. If you need fast backups, reliable file transport between devices, or external storage for documents, photos, and media, the 950 MB/s reads deliver performance that makes daily tasks feel instant compared to an external hard drive.
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.
The USB 3.2 Gen 2 interface means the Lexar SL100 Pro Portable 1TB 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 950 MB/s performance without compatibility concerns.
On paper, the Lexar SL100 Pro Portable 1TB delivers 950 MB/s reads and 950 MB/s writes. In practice, a 50GB file — a typical 4K video project, a large game install, or a full photo shoot — transfers in ~53 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 $Lexar SL100 Pro Portable 1TB feels similarly responsive to other fast portables for daily use. The real differentiator shows up during large file transfers, where the $950 MB/s read speed pulls noticeably ahead of slower SATA-based externals.
The $Lexar SL100 Pro 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 | Lexar SL100 Pro Portable 1TB | Samsung T7 Portable 2TB |
|---|---|---|
| Read Speed | 950 MB/s | 1,050 MB/s |
| Write Speed | 950 MB/s | 1,000 MB/s |
| Capacity | 1TB | 2TB |
| Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2 |
| Endurance | 600 TBW | 1,200 TBW |
| Score | 7.5/10 | 9.4/10 |
The Samsung T7 Portable 2TB scores higher in our evaluation (9.4 vs 7.5/10). It also delivers faster reads (1,050 vs 950 MB/s).
For a detailed head-to-head comparison, see our full Lexar SL100 Pro Portable 1TB vs Samsung T7 Portable 2TB comparison.
| Model | Capacity | Interface | Read | Write | TBW |
|---|---|---|---|---|---|
| Lexar SL100 Pro Portable 1TB | 1TB | USB 3.2 Gen 2 | 950 | 950 | 600 |
| Samsung T7 Portable 2TB | 2TB | USB 3.2 Gen 2 | 1,050 | 1,000 | 1,200 |
| Samsung T7 Portable 4TB | 4TB | USB 3.2 Gen 2 | 1,050 | 1,000 | 2,400 |
| Samsung T7 Portable SSD | 1TB | USB 3.2 Gen 2 | 1,050 | 1,000 | 580 |
Specs shown for the closest Ultra-Portable SSDs alternatives. Full comparison table available on the compare page.
The Lexar SL100 Pro 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.
Lexar
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.
Lexar
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.
Lexar
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.