Silicon Power
Silicon Power Ace A55
SATA · 1TB
The Ace A55 is the smaller and more basic of Silicon Power's two drives: a 1TB SATA model rated for 560/530 MB/s, in line with other SATA drives in this lineup, but its 240TB TBW rating is the lowest endurance figure of any drive listed, and its 3-year warranty ties the BarraCuda Q5 for the shortest coverage. That combination points to light everyday use — web browsing, document work, general storage — rather than heavy write workloads or long-term archival duty. Compared to the PCIe 4.0 UD90 from the same brand, it's a straightforward SATA upgrade at half the capacity, without the NVMe throughput or the higher endurance rating its sibling carries.
$189.97 at Amazon.ca · captured 2026-08-02
Specifications
- Capacity
- 1TB
- Interface
- SATA
- Sequential read
- 560 MB/s
- Sequential write
- 530 MB/s
- Form factor
- 2.5-inch
- NAND type
- TLC
- Endurance (TBW)
- 240 TB
- Warranty
- 3 years
Capacities
| Capacity | Part number | Current best price |
|---|---|---|
| 128GB | SP128GBSS3A55S25 | — |
| 256GB | SP256GBSS3A55S25 | — |
| 512GB | SP512GBSS3A55S25 | — |
| 1TB | SP001TBSS3A55S25 | $189.97 at Amazon.ca · captured 2026-08-02 |
| 2TB | SP002TBSS3A55S25 | — |
| 4TB | SP004TBSS3A55S25 | — |
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.