SD card

a.k.a. secure digital card, secure digital memory card

A Secure Digital (SD) card is a tiny memory card used to make storage portable among various devices, such as car navigation systems, cell phones, e-books, PDAs, smart phones, digital cameras, music players, and personal computers. An 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 stored data.


The SD card was jointly developed by Matsushita, SanDisk, and Toshiba.

NetLingo Classification: Net Hardware