SDMMC

SDMMC stands for Secure Digital MultiMedia Card. It is a non-volatile memory card standard used for a wide range of electronic devices, including digital cameras, smartphones, and tablets. The SDMMC standard was developed by the SD Association and is an evolution of the MultiMediaCard (MMC) standard.

There are several variations of the SDMMC standard, each offering different storage capacities and transfer speeds. These include SD, SDHC (High Capacity), SDXC (eXtended Capacity), and SDUC (Ultra Capacity). The physical form factor of these cards is generally the same, though some devices may only support specific capacity ranges.

SDMMC cards are designed for portability and ease of use. They are typically hot-swappable, meaning they can be inserted or removed from a device while it is powered on without causing data loss or system instability. This feature allows for convenient storage expansion and data transfer between devices.

The primary function of SDMMC is to store digital data, such as photos, videos, music, and application files. They are widely adopted due to their affordability, reliability, and broad compatibility across a vast ecosystem of consumer electronics. The SD Association maintains the specifications and ensures interoperability between different manufacturers' products.