Make your own story with 4K UHD video recording The PRO SDXC CARD has both UHS Speed Class 3(U3) and Video Speed Class V30 to meet your needs for 4K UHD high definition video. Never miss a single shot in continuous shooting mode The PRO SDXC is the key to ensuring that you don’t miss a single shot, whether it’s for shooting model indoor, outdoor sports or racing events. High performance transfer speeds up the workflow With high performance transfer of up to 100MB/s of read speed and 90MB/s of write speed, your workflow and can be speeded up significantly, which allows you to save more time and focus on photography. The perfect protection from extreme environment It has passed rigorous and extreme temperature testing and has functions of waterproof, shockproof, X-ray proof and anti-static, providing a comprehensive protection for your data.