TwinMOS Ultra-X Secure Digital (SD) card offers a reading speed of 6MB and a writing speed of 4.8MB. It is especially ideal for high-resolution professional digital cameras and digital camcorders, which require a high-performance SD card for taking continuous shots. What attracts users to Ultra-X Secure Digital card is its lightweight, small size and the CPRM system preventing data from being illegally duplicated. It provides the consumers with maximum security and privacy as they store and retrieve multimedia content.