SanDisk's 2GB Secure Digital (SD) Card is just the size of a regular UK stamp, and is highly secure with the data it can store. SanDisk's SD Card weighs a tiny two grams and can be used in a wide variety of digital products including; MP3 players, Digital cameras, digital video camcorders, Smart-Phones. High transfer speed for fast Read/Write Process. Non-volatile solid-state; no moving parts. Data is not lost when power is turned off. Low power consumption to maximize battery life. Write protect switch on the exterior of the card. Compatible with SD compliant devices.