The capacities of SD card typically can range from 1GB to 2TB (and even larger with time goes by). There are several types of SD cards which can be simply categorized into full SD card, mini SD card, and micro SD card. Today SD card has been widely applied in digital cameras, digital camcorders, handheld computers, mobile phones, media players, GPS receivers, video game consoles, and so on.
SD card (Secure Digital memory card) is a kind of tiny storage device developed by Matsushita, SanDisk, and Toshiba and is specially designed to use in portable devices.