What's the life expectancy of an SD card?
Problem
I have some SD cards that I use. Is there a limit to how many times I can write over them? If I leave information on a card, is there anything that can cause it to lose this information eventually (other than a magnetic field)? What's the preferred storage conditions for these cards?
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Fix for: What's the life expectancy of an SD card?
Flash memory indeed has limited write cycles. However, by now it is unlikely that you'll encounter this within the normal lifetime of such a card. Usually this is in the order of 100,000 write cycles today and SD cards include circuitry to manage wear-leveling, that is, spread out writes over the storage media evenly to avoid "hot spots"—pages that are written too frequently and therefore failing early. Information stored on the card is safe even in magnetic fields because the information is no…
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