How many times can you erase a SD card?

An SD card can typically be erased and rewritten around 1,000 to 10,000 times, depending on its type and quality. This lifespan varies based on factors such as the card's usage, the technology used (like SLC, MLC, or TLC), and environmental conditions. However, regular use under normal conditions should not significantly impact its performance for several years. It's always advisable to back up important data, as cards can fail unexpectedly.