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Silicon Power

Silicon Power Ace A55 Spec and Price in Italy

SATA1TB2.5-inch560 MB/s read

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.

Tied 87th of 106 models in the SSD catalog on Sequential read — 8 models share this figure. Tied 89th of 106 models in the SSD catalog on Sequential write — 4 models share this figure.

Current best price

No tracked price — this page compares specifications alone.

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

ConfigurationPart numberEndurance (TBW)Sequential writeSequential read
128GBSP128GBSS3A55S25240 TB480 MB/s560 MB/s
256GBSP256GBSS3A55S25240 TB500 MB/s560 MB/s
512GBSP512GBSS3A55S25———
1TBSP001TBSS3A55S25240 TB530 MB/s560 MB/s
2TBSP002TBSS3A55S25———
4TBSP004TBSS3A55S25———

Guides for this category

How to choose an SSDFour questions decide almost every SSD purchase — what fits, how big, how fast, and how much it should cost.NVMe or SATAWhich interface your machine takes, how to tell without opening it, and what the speed difference actually buys you.How much SSD capacity you actually needHow to size a drive from what you already use, why leaving headroom matters, and when one bigger drive beats two small ones.M.2 sizes and SSD form factorsWhat 2280, 2242, and 2.5-inch mean, which one your machine takes, and how to check the keying before you buy.What SSD speed numbers actually tell youSequential versus random performance, why the number on the box describes the rarer case, and how to read it without being misled.PCIe generations for SSDsWhat Gen 3, Gen 4, and Gen 5 change, why a newer drive always works in an older slot, and when the extra speed is worth paying for.TLC, QLC, and DRAM-less SSDsWhat the NAND type and the controller's cache change about how a drive behaves, and when either is worth caring about.SSD endurance and warrantiesWhat TBW and DWPD actually promise, how much a normal machine writes, and when endurance is worth paying extra for.How to install an SSDFitting an M.2 or 2.5-inch drive, choosing between cloning and a clean install, and what to check on the first boot.When an SSD price is actually goodWhy price per terabyte beats any discount percentage, and why a good price on one capacity says nothing about the others.

What owners and reviewers say

Summarised from 2 source(s), reviewed September 13, 2026. A source is counted only where it names this model exactly. How we track prices

Commonly praised

  • Affordable and performs well for gaming and everyday tasks, with good-quality internals in a solid metal casing.
  • Held a constant real-world transfer rate regardless of file size.
  • Owners consider it a cheap, high-capacity SATA drive, often as a low-cost upgrade for an older laptop or console.
  • This revision carries a DRAM cache, which owners say clearly improves on the SLC-cache variant of the same line.
  • Real-world load times are reported to be on par with more expensive SSDs.

Commonly criticised

  • Lags behind other drives in the same price range.
  • Its cache design brings drawbacks, including lower overall speed.
  • One owner reported the drive failing after roughly eighteen months of light use.
  • Owners note the warranty is shorter than some competing lines.

Sources behind this summary

Sources

Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.