The microSD format is limited to a maximum of 1 TB. A MicroSD card is the variation of the standard SD card, and it can be used just like a standard SD card by using an adapter or an SD card slot. The MicroSD card is six times smaller and two times thinner than the SD card. Now, advanced smartphones use micro SD cards because the standard SD card seems to be quite large. It was developed in portable devices like cameras, smartphones, camcorders, home theatre devices, set-top boxes, and video game consoles. SD card, or a Security Digital Card introduced by SD Association(SDA), Matsushita Electric, and Toshiba, is a non-volatile memory card.