Best 128GB Toshiba SSDs
There are 4 128GB Toshiba SSDs compared here. The fastest is the Toshiba BG4 at 2000 MB/s read at 128GB, and the highest-rated for endurance is the Toshiba Q300 PRO (640 TBW). Sequential reads across the group span 550–2000 MB/s at 128GB.
Why this configuration
A 128GB Toshiba SSD is a capacity-first shortlist. Everything here is available at this size, across interfaces and price tiers, so the choice comes down to how fast you need it and how much rewriting it will take. Toshiba specifically tends to be chosen here for its firmware track record and warranty support.
At 128GB this is really a boot or cache drive rather than a main library.
Usually chosen for: buyers who have already settled on the size and are picking on specs.
Good fit: mainstream desktop and laptop builds.
Ranked list
Speeds on this page are the manufacturer's 128GB ratings where published (2 of 4 drives), not the family headline figure. 1 of the 4 are rated slower at 128GB than at their fastest capacity. Rated writes at 128GB run 520–800 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 128GB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  Toshiba BG4 128GB, 250GB, 500GB, 1TB | — | Controlador Toshiba(Proprietário) | 2000 | — | Find on Amazon |
| 2 |  Toshiba RC100 128GB, 250GB, 500GB | — | — | 1600* | 240 | Find on Amazon |
| 3 |  Toshiba Q300 128GB, 250GB, 500GB, 960GB | — | Toshiba TC358790 | 550* | 240 | Find on Amazon |
| 4 |  Toshiba Q300 PRO 128GB, 250GB, 500GB, 1TB | — | Toshiba TC58NC1000 | 550 | 640 | Find on Amazon |
* family rating — the manufacturer does not publish a 128GB figure for this drive.
The parts, explained
128GB suits a boot drive or a light secondary disk.
Staying with Toshiba means consistent firmware, tooling and warranty handling across the range.