SanDisks award-winning (American Photo, Readers Choice, CHIP Magazine etc.) controller technology, that allows you to save large image files faster, solidifies the strength of the Ultra II family of high-performance flash cards. 1 -year warranty. This line of premium Ultra II products for Memory Stick PRO Duo features faster write speed meaning less time between shots. You will always be ready for rapid-fire shooting even in temperatures from -25 to 85C. SanDisks Ultra II is a high-performance digital memory solution for the serious photographers. This family of outstanding flash cards provides the durability and high-speed quality needed for advanced amateur photographers and photo enthusiasts.