Why does my microSD card have a second row of contacts?

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Music by Eric Matyas
https://www.soundimage.org
Track title: Ancient Construction

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Chapters
00:00 Question
00:43 Accepted answer (Score 158)
02:11 Thank you

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Full question
https://superuser.com/questions/1254125/...

Question links:
[image]: https://i.stack.imgur.com/u3lry.jpg

Accepted answer links:
[Secure Digital Wikipedia page]: https://en.wikipedia.org/wiki/Secure_Dig...

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Tags
#microsdcard

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