Designed for prosumers and professionals shooting with single- and dual-slot DSLR, mirrorless, and cinema cameras, this 256GB Extreme PRO UHS-II SDXC Memory Card from SanDisk lets you capture cinema-quality 6K, 4K, and Full HD video with standard and slow motion frame rates, as well as raw photos, time-lapse images, and continuous shutter bursts. This card has a storage capacity of 256GB and takes advantage of the UHS-II bus to support read speeds of up to 280 MB/s and write speeds of up to 150 MB/s. Thanks to the V60 Video Speed Class rating, write speeds won't drop below 60 MB/s