Best 500GB ADATA MLC SSDs
There are 7 500GB ADATA MLC SSDs compared here. The fastest is the ADATA SX9000 at 2800 MB/s read, and the highest-rated for endurance is the ADATA SU900 (1600 TBW). Sequential reads across the group span 550–2800 MB/s at 500GB.
Why this configuration
A 500GB ADATA MLC SSD is a legacy endurance choice. MLC stores two bits per cell instead of three, so these older drives take far more rewriting than a modern budget drive, at a much higher cost per gigabyte. ADATA specifically tends to be chosen here for its firmware track record and warranty support.
500GB is a sensible OS-plus-a-few-games size.
Usually chosen for: write-heavy secondary roles and keeping older machines useful.
Good fit: mainstream desktop and laptop builds.
Ranked list
| # | Model | Tier | Controller | Read MB/s (at 500GB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  ADATA SU900 128GB, 250GB, 500GB, 1TB, 2TB | High-end | Silicon Motion SM2258H (1-Core, 4- | 560* | 1600 | Find on Amazon |
| 2 |  ADATA SX950 250GB, 500GB, 960GB, 1.92TB | High-end | Silicon Motion SM2258G (1-Core, Cl | 560* | 1600 | Find on Amazon |
| 3 |  ADATA SP920 128GB, 250GB, 500GB, 1TB | Mid-range | Marvell 88SS9189 | 560* | 72 | Find on Amazon |
| 4 |  ADATA SX930 128GB, 250GB, 500GB | Mid-range | JMICRON JMF670H (Comparável à um S | 550* | 280 | Find on Amazon |
| 5 |  ADATA SP610 128GB, 250GB, 500GB, 1TB | Value | Silicon Motion SM2246EM | 560* | — | Find on Amazon |
| 6 |  ADATA SX9000 250GB, 500GB, 1TB | — | Marvell 88SS1093 | 2800* | 1000 | Find on Amazon |
| 7 |  ADATA XPG SX8000 128GB, 250GB, 500GB, 1TB | — | Silicon Motion SM2260 (Dual ARM Co | 1900* | 640 | Find on Amazon |
* family rating — the manufacturer does not publish a 500GB figure for this drive.
The parts, explained
500GB is a comfortable OS-and-games starting point.
MLC NAND is older and costs more per gigabyte, but is very durable.
Staying with ADATA means consistent firmware, tooling and warranty handling across the range.