CompactFlash

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CF cards often have a note area on the back

CF (right) compared to an SD card (left)

CompactFlash (CF) is a type of flash memory, commonly used for storage in early digital cameras and other digital devices, and still in production (2009). It was originally created by memory manufacturer SanDisk in 1994, with the interface loosely based on the existing PCMCIA slot standard.

There are two types - with different thicknesses: type I - 43×36×3.3mm, and type II - 43×36×5mm.

CF is a long-lived format compared to other flash formats, and new, faster and larger cards are still in development (in 2009); cards exist in sizes from 2Mb to 100Gb.

• Wikipedia CompactFlash