what is sd card

SD card, the full name of Secure Digital Card, is a non-volatile memory card that can save data and will not be lost after the device is powered off or restarted. Mobile phone SD card is a storage medium usually used on mobile phones or other portable devices to store and transfer data. Features of SD card: 1. Small size: 32mm x 24mm x 2.1mm, easy to carry; 2. Large capacity: can store a large amount of data; 3. High-speed transmission: suitable for high-speed data transmission applications; 4. Can Hot swapping, etc.

Mobile phone SD card is a storage medium usually used on mobile phones or other portable devices to store and transfer data. The full name of SD card is Secure Digital Card. It is a non-volatile memory card that can save data and will not be lost after the device is powered off or restarted.

Features of SD cards include:

1. Compact size: SD cards are small, lightweight memory cards measuring 32mm x 24mm x 2.1mm , easy to carry.
2. Large capacity: The storage capacity of SD cards ranges from a few hundred megabytes to hundreds of gigabytes, and can store a large amount of data, such as photos, videos, music, games, etc.
3. High-speed transmission: The data transmission speed of SD card is relatively fast, which is suitable for high-speed data transmission applications, such as high-definition video recording and playback.
4. Hot-swappable: The SD card is hot-swappable, that is, it can be inserted or removed while the device is running, making it convenient for users to use.
5. High security: The SD card uses encryption technology to protect the data stored in it from illegal access or theft.

In general, mobile phone SD card is a reliable, convenient and efficient data storage solution, which is widely used in portable devices such as mobile phones, digital cameras, camcorders, and portable audio players.

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