This device transfers data stored on one SD memory card to another SD card, enabling you to easily share your pictures, music, movies, and documents at the touch of a button. Not requiring a computer, it can transfer a 2GB SD memory card's contents onto another SD card in five minutes, allowing you to select all content at once or select by file type. Separate music, movie, picture, and document buttons selects only the appropriate files. Includes a USB cable for connecting to your computer when you want to use the device as a card reader for transferring data directly to and from a computer. Requires three AA batteries. 6" L x 3" W x 1" D. (1 lb.)