Best 500GB SATA Seagate SSDs
There are 4 500GB SATA Seagate SSDs compared here. The fastest is the Seagate BARRACUDA at 560 MB/s read at 500GB, and the highest-rated for endurance is the Seagate IronWolf 110 (7000 TBW). Sequential reads across the group span 500–560 MB/s at 500GB.
Why this configuration
A 500GB SATA Seagate 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. Seagate 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: reviving older machines, cheap capacity upgrades and second drives.
Good fit: budget upgrades, older PCs and second drives.
Look elsewhere for: large-file creative work where NVMe pulls ahead.
Ranked list
Speeds on this page are the manufacturer's 500GB ratings where published (2 of 4 drives), not the family headline figure. Rated writes at 500GB run 535–540 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 500GB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  Seagate IronWolf 110 250GB, 500GB, 960GB, 1.92TB, 3.84TB | Top-tier | Seagate 500021768 | 560* | 7000 | Find on Amazon |
| 2 |  Seagate BARRACUDA 250GB, 500GB, 1TB, 2TB | Value | SEAGATE STXZA01EA387 (Phison PS311 | 560 | 1067 | Find on Amazon |
| 3 |  Seagate BARRACUDA 120 250GB, 500GB, 1TB, 2TB | Value | SEAGATE STXZA01EA387 (Phison PS311 | 560 | 1170 | Find on Amazon |
| 4 |  Seagate 600 SERIES 128GB, 250GB, 500GB | — | Link A Media LM87800 | 500* | 72 | 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.
SATA III tops out around 550 MB/s, but it is the cheapest interface and fits any 2.5-inch bay or older laptop.
Staying with Seagate means consistent firmware, tooling and warranty handling across the range.
Common questions
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.