There's a reason why some SD cards have a tiny switch on the side. It's actually there to help protect the data onboard, but it's not as foolproof as it seems.

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If your SD card automatically deletes files and photos without a warning on your Windows PC, take these steps to resolve the issue.

Here's a list of the best microSD cards you can buy, as chosen by Engadget editors.

The card reader has slots for both Micro SD/SDXC and full-sized SD/SDXC cards. Using the card reader is as simple as inserting it into one of your spare USB ports.

Samsung and SanDisk's officially-licenced Micro SD Express cards for Nintendo Switch 2 are available from ShopTo with a small, but useful, discount.

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SD cards and microSD cards have a lot of their own unique terms and specifications. It will all make sense once we break it down for you.

The larger CFexpress card, the successor to the Compact Flash and XQD cards, can also be found in professional and video cameras.