The newest, fastest "app class" microSD cards are still not very good for apps
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Was bedeuten die Abkürzungen A1 und A2 auf SD-Karten?
A1 vs A2 SanDisk MicroSD Card: What's The Difference? - MyMemory Blog
Cartes SD et microSD : perdus dans la jungle des sigles ? On vous explique tout
Are high-speed/high-capacity (A1, A2, U3) microSD cards worth it for Android? With Black Friday and Cyber Monday deals coming up, I (re)tested 5 of those and 2 older ones in 3 quite
SDカードのA1とA2とは?失敗しない選び方
Best MicroSD Cards 2021: MicroSD Card Reviews - Tech Advisor
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