This SD features fast transfer rate for reliable copy/download/backup. Data is not lost when power is turned off. The SD Card can be used in a variety of digital products; digital music players, mobile phones, handheld PCs, digital cameras, digital video camcorders, smart phones, car navigation systems and electronic books. The SD Card is a highly secure stamp-sized flash memory card jointly developed by SanDisk, Matsushita Electronic (best known for its Panasonic products) and Toshiba. The security level complies with both current and future portable device requirements.