Amazon.com: Patriot 64GB A1 / V30 Micro SD Card for Android Phones and Tablets, 4K Video Recording - 5 Pack, Lot of 5 : Electronics
64 micro SD Card U3/V30/A1 with Adapter Pack of 2 Memory Cards for Home Surveillance Cameras, Hunting Cameras and Dash Cams - KENTFAITH
Team Group 1TB Elite microSDXC UHS-I U3, V30, A1, 4K UHD Micro SD Card with SD Adapter, Speed Up to 100MB/s (TEAUSDX1TIV30A103) - Newegg.com
Application Performance Class | SD Association
A1 vs A2 SanDisk MicroSD Card: What's The Difference? - MyMemory Blog
A1 VS A2 SD Card: Compare Them and Make a Wise Choice - MiniTool Partition Wizard
64 micro SD Card U3/V30/A1 with Adapter Pack of 2 Memory Cards for Home Surveillance Cameras, Hunting Cameras and Dash Cams - KENTFAITH
Lexar 32GB Micro SD Card, microSDHC UHS-I Flash Memory Card with Adapter - Up to 100MB/s, U1, Class10, V10, A1, High Speed TF Card for Nintendo Switch/Bluetooth Speaker/Smartphone/Camera/Tablet/VR - Walmart.com