Best 128GB Transcend SSDs
There are 4 128GB Transcend SSDs compared here. The fastest is the Transcend 110S at 1500 MB/s read at 128GB, and the highest-rated for endurance is the Transcend 370 (1180 TBW). Sequential reads across the group span 530–1500 MB/s at 128GB.
Why this configuration
A 128GB Transcend 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. Transcend 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 (3 of 4 drives), not the family headline figure. 2 of the 4 are rated slower at 128GB than at their fastest capacity. Rated writes at 128GB run 170–400 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 128GB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  Transcend 110S 128GB, 250GB, 500GB, 1TB | Value | Silicon Motion SM2263XT (2-Core, 4 | 1500 | 400 | Find on Amazon |
| 2 |  Transcend SSD230S 128GB, 250GB, 500GB, 1TB, 2TB | Value | Silicon Motion SM2258 | 560 | 1120 | Find on Amazon |
| 3 |  Transcend 370 128GB, 250GB, 500GB, 1TB | Value | Transcend TS6500 (rebranded Silico | 550 | 1180 | Find on Amazon |
| 4 |  Transcend SSD220S 128GB, 250GB, 500GB | Value | Silicon Motion SM2256K | 530* | 160 | 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 Transcend means consistent firmware, tooling and warranty handling across the range.