The SanDisk Extreme PRO Micro SDHC 100MB/s UHS-I Card - 32GB lets you shoot more and transfer even faster. It has quick read speeds of up to 100MB/s to save you time when transferring big files of high-resolution images and 4K UHD videos.The write speeds of up to 90MB/s allow you to capture fast-action photos or shoot in continuous burst mode.With Pro performance for faster shots, 4K UHD, and accelerated app performance. SanDisk Extreme PRO micro SDHC and micro SDXC cards are built tough for extreme durability, even under challenging environmental conditions. Extreme speeds let you capture every detail of adventure and take the wait out of transferring your videos between devices. Storage capacities from 32GB to 128GB expand your device