Silicon Power 64GB-1TB Superior UHS-1(U3) A1/A2 Gaming MicroSD Memory – Silicon Power Store (US)
All about SanDisk's microSD cards with the new A1 speed class - HardwareZone.com.sg
A1 VS A2 SD Card: Compare Them and Make a Wise Choice - MiniTool Partition Wizard
A1 vs A2 SD Card Ratings Explained
Amazon.com: EMTEC 512GB Gaming MicroSD Card UHS-I U2 V30 A1 - Orange - Compatible with Nintendo Switch : Electronics
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