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2025-09-26 19:00:15 How long can solid-state drives store data without power supply
The time range for solid-state drives to store data without power mainly depends on their type and ambient temperature.
1. Data retention time for different types of solid-state drives:
MLC SSD: Data retention time is approximately 6 months to 1 year.
TLC SSD: Data can only be retained for 3-6 months.
QLC SSD: Typically has weaker data retention capabilities and shorter data retention times compared to TLC.
2. The impact of environmental temperature on data retention time:
At an ambient temperature of 30 ℃, it is recommended that consumer grade SSDs should not experience power outages for more than 6 natural months, while enterprise grade SSDs can be slightly longer, but should also avoid exceeding 1 natural year. In theory, solid state drives purchased by ordinary household users should be able to store internal data for at least one year without damage at room temperature without plugging in. However, if stored for more than one year, the probability of data loss will gradually increase.
3. Comparison of data retention capabilities of different types of hard drives:
Mechanical hard drive: using disks to store 0s and 1s, magnetic media have less dependence on power, and data can be stored for more than 10 years without power. In contrast, solid-state drives have poor data retention capabilities when powered off.
4. Methods to extend the data retention time of solid-state drives:
Regular power on: It is recommended to power on every six months to one year to "extend the life". You can use a PSSD hard drive case to install an SSD as a portable hard drive and connect it to the computer to view data.
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