Are all SD cards the same?

Related questions

1. What is the fastest SD card for cameras?
2. Which is faster USB 3.0 or SD card?
3. What does u3 mean on SD cards?
4. What is the fastest SD card for DSLR?
5. Is a USB flash drive faster than a SD card?
6. Will SDXC work in SDHC slot?
7. What is UHS 3 memory card?
8. Can I use SDXC instead of SDHC?
9. What is a Class 10 SD card?
10. Which is faster u1 or u3?

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15. #incompatible
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