SanDisk Extreme PRO UHS-II 300 MB/s 128GB SDXC Memory Cardis the world's fastest SDXC memory card designed to meet the needs of professional photographers and videographers. SanDisk Extreme PRO SD UHS-II cards are built to last in any environment. They are not only resistant to mechanical stress, X-rays and moisture7, but also remain operational at temperatures from -25 to +85 °C. You can safely use your digital camera or camcorder during a snowfall, shoot at the edge of the pool or among the hot sands of the desert. The SanDisk memory card will survive even if the device itself fails. SanDisk Extreme PRO SDXC UHS-II Memory Cards are shockproof, waterproof, wide-temperature resistant, and X-ray resistant so you can enjoy any adventure without worrying about the durability of your memory card.