SD Card
A Secure Digital (SD) card is a tiny memory card used to make data storage portable among various devices such as car navigation systems, cell phones, eBooks, PDAs, smartphones, digital cameras, music players, camcorders and personal computers. A SD card features a high data transfer rate and low battery consumption, both primary considerations for portable devices. It uses flash memory to provide nonvolatile storage, which means that a power source is not required to retain data stored.
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