SD Card is a flash memory card widely used by digital cameras. It is a non-volatile memory cardformat. The capacities are from 8 MB, 32 MB, 64 MB, 256 MB, 512 MB, 1 GB, 2 GB, 4 GB to 64 GB, and types include the SD memory card, SDHC, SDXC, miniSD and microSD. The SD Card is developed by SanDisk, Toshiba and Panasonic. The SD Card is compact and slim but handles high volume content.