Silicon Power A55 128GB SATA III 2.5"
Silicon Power
33 Overall Score
vs
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
94 Overall Score
What Buyers Say
Silicon Power A55 128GB SATA III 2.5"
82 out of 100 medium confidence 12 reviews
Users generally praise this budget SSD for its excellent value, easy installation, and significant speed improvements over traditional HDDs, especially for reviving older systems or as boot drives for servers and NAS builds. While some note that higher-end drives like the Samsung 860 Pro offer better performance and longer warranties, most agree that for everyday tasks and cost-conscious buyers, this drive performs admirably. A few isolated issues were mentioned, such as one drive going read-only (though RMA was smooth) and a lack of mounting screws, but overall sentiment is highly positive.
Pros
- Excellent value for money
- Easy installation
- Significant speed boost over HDD
- Great for reviving old systems
- Reliable for boot drives in servers/NAS
Cons
- Lower performance than high-end SSDs
- Shorter warranty than competitors
- No mounting screws included
- Potential for drive failure (rare)
- Not for heavy workloads
Value for money 8
Performance 7
Ease of installation 5
Reliability 5
Suitability for old systems 4
Warranty and support 3
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
No customer feedback yet
Scores
Console
Gaming
Workstation
Budget
Laptop
Portable
Specifications
| Silicon Power A55 | Western Digital WD_BLACK SN850X | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | 2.5" | M.2 2280 |
| Interface | SATA III | PCIe 4.0 x4 |
| Protocol | SATA | NVMe |
| PCIe Generation | — | 4★ |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | No data | |
| Random Write (IOPS) | No data | |
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | ✗ | ✓★ |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | 1 | 3★ |
| Features | ||
| Heatsink | ✗ | ✓★ |
Pros & Cons
Silicon Power A55 128GB SATA III 2.5"
- Strong affordability (91st percentile)91st %ile
- Strong social proof (77th percentile)
- Below average capacity (7th percentile)7th %ile
- Below average speed (22nd percentile)
- Below average random (22nd percentile)
- Below average endurance (34th percentile)
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
- Strong random (96th percentile)96th %ile
- Strong social proof (95th percentile)95th %ile
- Strong feature (94th percentile)94th %ile
- Strong capacity (93rd percentile)93rd %ile
- Below average affordability (9th percentile)9th %ile
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 94 overall, wins 6 of 6 usage categories and 11 of 16 specs.