Ask Us: What does a card's class rating mean?

There are a lot of numbers bandied about on your memory card, but what do class 2, 4 or 6 mean and which is better?

There are a lot of numbers bandied about on your memory card, but what do class 2, 4 or 6 mean and which is better?

For more answers to commonly asked questions from readers, see our Ask Us video archive.

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About the author

Lexy spent her formative years taking a lot of photos and dreaming in technicolor. Nothing much has changed now she's covering all things tech from CNET's Sydney office.

 

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