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What is the difference between Class 10 and Class 4 memory cards, and also between SDHC and SD? - Quora
What is the different between a class 10 micro SD card and class 4? Is there some changes in the circuitry or the materials used in manufacturing? - Quora
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Real micro sd card 32 GB Class 10 4gb 8gb 16GB 32 GB Class 10 microsd memory card for mp3 mini DVR Free shipping|card 4gb|card pspcard reader writer magnetic - AliExpress
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