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I have 32 GB Kingston class 10 and 32 GB Samsung Pro UHS-I class 10 cards.
So I can forget Kingston. Maybe Samsung is good enough. It is intended for tablets, it seems. But not for smartphones. Hm. What is the difference?
But I wonder if Aura HD supports UHS-I. Even without its advantage Samsung is probably faster.
As to the hatch.
I have the official Kobo sleep cover - it is like the second bottom of the case, so I guess my hatch does not even have to have a lid on it. It can be left open. Maybe I can make a hatch almost of the size of the whole bottom, just leaving a narrow frame around - to reduce the weight of the device. Because of the cover I now have two layers of plastic at the bottom. One is enough.
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