Kingston Canvas Select Plus microSD Memory Card, Up to 100MB/s Read, UHS-I, 64GB–1TB

A1 covers app loading at the basic tier, which is enough for a phone or tablet used mostly for photos, music and offline maps. Devices that run games or full applications off the card want A2 instead — the Kingston Canvas Go Plus microSD Card is the step up.

The speed class is not uniform across this line: the larger capacities carry a higher video rating than the smaller ones, so check the variant before ordering for 4K.