Memory Cards

How microSD Cards Expand Device Storage

A microSD card can add a surprising amount of storage to a small device. Phones, tablets, cameras, handheld game systems, dash cameras, and other electronics may use these tiny removable cards to hold photos, videos, downloads, maps, games, and other files. The basic idea is simple: a microSD card contains flash memory that keeps data even when power is removed. In practice, however, choosing and using one involves more than matching the physical shape. Capacity limits, file systems, speed ratings, workload requirements, and device support all affect whether a card will work well.