CompactFlash is a type of removable memory card commonly used in digital cameras to store photographs and video. Known for its durability and fast data transfer speeds, CF cards were widely adopted in professional and enthusiast cameras. The maximum storage capacity of older CF cards is around 256MB, though modern storage solutions now offer much higher capacities in similar card formats. CompactFlash cards are valued for reliable performance, making them suitable for high-resolution photography, continuous shooting, and professional workflows.