A small USB plug-and-play device used to read, copy and
backup data from portable flash memory cards
such as an SD Card, MiniSD,
MicroSD, SIM and others that are used in a wide variety of
consumer electronics products. One card
reader may be used for a specific type of memory card, while others may be
designed to read multiple types of memory cards.
Steve's DigiCams - Flash Memory Cards The most popular types of flash memory cards for use in digital cameras are: Secure Digital (SD), CompactFlash (CF), Memory Stick (MS), MultiMediaCard (MMC) xD-Picture Card (xD) and SmartMedia (SM). The type of memory card you use is dictated by which digital camera you buy. These physically different cards are -not- interchangeable.