Memory card
A memory card is a form of flash memory that is used in a range of electronic devices, such as a digital camera or video game console. The memory card stores data, like images, music, saved games or other computer files.
Flash memory devices like this contain no moving parts so they are not easily damaged. This means that they are ideal for use in portable devices such as MP3 players, digital cameras, mobile phones, etc.
The amount of data memory cards can store depends on the capacity of the card. As of 2025, the largest memory cards widely available can store 2 terabytes of data. As the technology improves, larger capacity cards are expected.
There are many types of memory cards, for example MultiMediaCard or CompactFlash, but the most common cards in use in the 21st century are of the SD card type, like MicroSD.
Memory Card Media
Miniaturization is evident in memory card creation; over time, the physical card sizes have become smaller.
Secure Digital card (SD)
MiniSD card with an SD card adapter
NM card (a proprietary memory card format created by Huawei) Electronic contacts compared to nano-sim card to the same scale