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Flash Card

A flash memory card is typically a small flash memory module enclosed in a plastic casing that is used to retain or store data in portable devices such as PDAs, digital cameras and cellular phones. It supports high re-record ability and high-speed transfer rates and power-free storage. Most cards come in different speed or data transfer rates. High speed flash cards are usually an improvements over the regular ones and are priced slightly more costly. A dedicated or multi-card reader is used to connect the card into a computer.


Popular flash memory cards include SD (Secure Digital) card, MMC (Multi Media) card, CF (Compact Flash I or Compact Flash II) card, SM (Smart Media) card, Memory Stick, and XD card. The new compact flash card supports data transfer rate up to 20MB/s and capacity of up to 4GB.