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 got her first taste of all things tech at an early age, playing long spells of Ski Free during the glory days of Windows 3.1. Originally from CNET's Sydney office, she now calls San Francisco home.

 

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