The new SanDisk Ultra II CompactFlash memory card has a minimum sustained write speed of 9 megabytes (MB) per second and a read speed of 10MB per second. Get faster speed for all the things you do. In the fast-paced world of Digital Photography, you rely on your camera and its capabilities. You also rely on your CompactFlash card to be fast, reliable and compatible with your camera. To meet the needs of professional and advanced photographers, SanDisk has developed new, optimized CompactFlash cards.