Analysis
Based on information from Quora and PCWorld, the claim that SSDs can retain data for up to 50 years without power tends to be exaggerated. Factors such as the type of flash memory, storage environment, temperature, and frequency of use greatly affect the SSD’s ability to retain data.
| Factor | Influence on Data Retention |
| Types of Flash Memory | SLC/MLC is better than TLC/QLC in terms of data retention |
| Temperature and Humidity | High temperatures accelerate data degradation |
| Endurance and Write Cycles | Frequently used SSDs have worse data retention |
| Long-Term Storage | For the long term, SSDs should be stored in ideal environmental conditions |
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Conclusion
Based on various research and user experience, Solid State Drives (SSDs), despite their high speed and performance, are not ideal for long-term data storage without a power supply. Data on SSDs can degrade over time, especially if stored in sub-ideal temperature conditions.
Understanding the type of flash memory used in SSDs is essential to know the data retention capabilities and memory cell lifespan. SLC (Single-Level Cell) offers the best data retention, while QLC (Quad-Level Cell) has the worst data retention. In addition, storage conditions such as temperature and humidity also greatly affect the lifespan of the data on the SSD.