Motorola Memory Cards Motorola Memory Cards MicroSD cards in capabilities of 512 Mb and 1 Gigabyte are currently available. Adding a large capacity card is like adding extra features, particularly where music is concerned. A 1 Gig card can store around 250-350 MP3 songs or thousands of Megapixel photos. Easily expand and customise your phone entertainment experience and share content with other personal electronic devices. You are no longer constrained by embedded phone memory limitations.