Provides the superior speed reliability & compatibility High-density flash memory Optimized controller technology Lower power consumption Lifetime warranty. The San Disk Ultraandreg II Memory Stick PROand 153 card provides the superior speed reliability & compatibility serious digital photographers need to take advantage of the advanced features found in todays high megapixel digital cameras. San Disk Ultra II Memory Stick PRO cards feature high-density flash memory & optimized controller technology for saving large image files faster lower power consumption for longer battery life & a lifetime warranty. San Disk Ultra II Memory Stick PRO cards are fully compatible & interchangeable with all Memory Stick PRO-compatible devices such as digital cameras digital camcorders & card readers that comply with the Memory Stick PRO standard.