SanDisk 128 MB Secure Digital Memory Card Secure Digital (SD) memory is a lightweight, secure way to store your valuable data and carry it with you This stamped-sized memory card is useful for storing audio, images, or text It's compatible with a wide variety of products--handheld computers, cellular phones, digital cameras, and even digital music players and electronic books Features a high storage capacity and transfer rate User-selected mechanical write-protect feature, on the casing