Kingston 64GB Canvas Go Plus Micro SD Card (SDXC) UHS-I U3 V30 A2 + Adapter - 170MB/s US$20.99 | MyMemory
Extreme Performance High Speed UHS-I SDXC 256GB SD Card 90/60 MB/S U3 A1 Class-10 V30 Memory Card for SD Devices That can Capture Full HD, 3D, and 4K Video as Well as
Understanding SD Cards nomenclature! | by two [EPIC] bits | Medium