A Compact Flash (CF) card is a popular memory card that uses flash memory to store data on a very small card. A Compact Flash card makes data easy to add to a wide variety of computing devices, including digital cameras and music players, desktop computers, personal digital assistants (PDAs), digital audio recorders, and photo printers.

Based on the Personal Computer Memory Card International Association (PCMCIA) PC Card specifications, Compact Flash measures 43 X 36 mm (about the size of a matchbook) and is available with storage capacities ranging up to 1 gigabyte (GB), with higher capacities