This Promaster128GB SDXC VelocityCINE cardisideal for ultra-high resolution cinematic video and high-speed RAW photography, especially when used with UHS-II cameras and card readers. Say goodbye to dropped frames or buffering problemsits 250MB/s write speed and V90 video speed class mean your camera will never outpace this card. Additionally,its high read speed helps save time when transferring files. Velocity CINE Cards are also backward compatible with UHS-I cameras and readers, so you can be sure to get the highest performance no matter what devices youre using.