I'm thinking about getting a new sd card and read that the class of them really matters. I'm looking at getting a 16gb one with a class not less than class 6. How do I check for the class?
Answer
An SD Card class basically the minimum sequential write speed that the SD card supports. Testing the class of an SD is quite easy, just copy a 1 GB file to an empty card and measure the time it took for the copy. A class 6 SD card should support at minimum 6MB/s.
Also check out the markings on the SD card, there should a logo like the following:
the number in the logo describes the speed class.
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