Keep your music, images, text and more on an sd card! The sd card is a highly secure stamp-sized flash memory card. Jointly developed by matsushita electronic (best known for its panasonic brand name products), sandisk and toshiba, the sd card weighs approximately two grams. The sd card can be used in a variety of digital products; digital music players, cellular phones, handheld pcs (hpcs), digital cameras, digital video camcorders, smart phones, car navigation systems and electronic books. Features: fast transfer rate for reliable copy/download/backup. High storage capacity. Non-volatile solid-state; no moving parts maximizes battery power. Data is not lost when power is turned off. Low battery consumption to maximize battery life in small portable devices. User selectable mechanical write protect switch on the exterior card casing. Operating shock rating of 2,000gs, equivalent to a 10-foot drop to the floor. Security level complies with both current and future secure digital music initiative (sdmi) portable device requirements.