A memory card is a product used to store data, typically used in devices such as cameras, phones, tablets, game consoles, etc. The main function of a memory card is to store data (such as photos, videos, music, files, etc.) for easy access and transfer anytime, anywhere. Memory cards usually come in different storage capacities, such as 16GB, 32GB, 64GB, etc., and users can choose the appropriate memory card based on their needs. Common types of memory cards include SD cards, MicroSD cards, CF cards, etc. Memory cards are known for their portability, high-speed read/write capabilities, stability, and are essential accessories in modern electronic devices.