Best 1.92TB SATA DRAM-less SSDs
There are 4 1.92TB SATA DRAM-less SSDs compared here. The fastest is the Hikvision C100 at 530 MB/s read at 1.92TB, and the highest-rated for endurance is the ADATA SU650 (1120 TBW). Sequential reads across the group span 500–530 MB/s at 1.92TB.
Why this configuration
A 1.92TB SATA DRAM-less SSD is a budget and compatibility choice. SATA won't win benchmarks, but it's the cheapest way to add solid-state speed and fits essentially any PC or laptop with a 2.5-inch bay.
Usually chosen for: reviving older machines, cheap capacity upgrades and second drives.
Good fit: value builds and gaming where cost per gigabyte matters; budget upgrades, older PCs and second drives.
Look elsewhere for: databases, virtual machines and other sustained random-write workloads; large-file creative work where NVMe pulls ahead.
Ranked list
Speeds on this page are the manufacturer's 1.92TB ratings where published (4 of 4 drives), not the family headline figure. Rated writes at 1.92TB run 420–450 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 1.92TB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  ADATA SU650 128GB, 250GB, 500GB, 60GB, 960GB, 1.92TB | Value | SILICON MOTION SM2258XT ou Maxio M | 520 | 1120 | Check price on Amazon |
| 2 |  ADATA SU630 250GB, 500GB, 960GB, 1.92TB | Low-end | SILICON MOTION SM2259XT (1-Core, 4 | 520 | 400 | Check price on Amazon |
| 3 |  Kingston A400 128GB, 250GB, 500GB, 960GB, 1.92TB | Low-end | Kingston CP33238B (Phison S11 Rema | 500 | 800 | Check price on Amazon |
| 4 |  Hikvision C100 128GB, 250GB, 500GB, 960GB, 1.92TB | — | Silicon Motion SM2258XT (1-Core, 4 | 530 | 640 | Find on Amazon |
The parts, explained
SATA III tops out around 550 MB/s, but it is the cheapest interface and fits any 2.5-inch bay or older laptop.
DRAM-less drives use the Host Memory Buffer (HMB) instead — cheaper, and fine for everyday use and gaming, with a small penalty under heavy random writes.
Common questions
Is a DRAM-less 1.92TB SSD good enough?
For gaming and everyday use, yes — HMB covers those workloads well. If you run sustained heavy random writes (databases, VMs), a drive with a DRAM cache stays more consistent.
Is SATA fast enough in 2026?
For an OS, apps and most games you won't notice the difference versus NVMe in daily use. NVMe pulls ahead mainly on large file transfers and load-heavy creative work.