The write protection switch on the secure digital memory card
helps prevent the accidental erasure of the data in the memory
card.
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A SDHC Card Reader is used to read secure digital cards. Secure
digital cards are used for recording data on digital cameras, GPS
devices, phones and tablets.
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Yes, one of the most effective ways to avoid any writes on the
flash medium is to use a secure digital memory card in the memory
reader.