Designed for SD devices that can capture Full HD video, as well as raw and JPEG photography, the 256GB Ultra UHS-I SDXC Memory Card from SanDisk has a capacity of 256GB and delivers read speeds of up to 120 MB/s. It is compatible with the UHS-I bus and features a speed class rating of Class 10 and U1, both of which guarantee minimum write speeds of 10 MB/s. Built for extreme conditions, this card is water, shock, x-ray, and temperature proof to help protect your data, while a built-in write-protect switch further helps to safeguard your content.