A Multimedia Card (MMC) Reader Windows driver is software that enables your computer to recognize and interact with a Multimedia Card (MMC) or similar memory cards, such as SD cards, used for storage in devices like cameras, smartphones, or MP3 players. These cards are often used to store data like photos, videos, documents, or system files.
The driver acts as a translator between the hardware (card reader) and the operating system (Windows), ensuring that the data on the MMC card can be read, written, and transferred properly.