Extreme PRO UHS-I SDXC Memory Card 170MB/s -SDSDXXY-256G-GN4IN 256 GB

OverviewDesigned for SD devices that can capture Full HD, 3D, and 4K video, as well as raw and burst photography, the 256GB Extreme PRO UHS-I SDXC Memory Card from SanDisk has a capacity of 256GB, is compatible with the UHS-I bus, and features a speed class rating of V30, which guarantees minimum write speeds of 30 MBs. If your device does not support the V30 standard, this card also supports the U3 standard, which likewise guarantees minimum write speeds of 30 MBs. Read speeds are supported up to 170 MBs and write speeds max out at 90 MBs. A built-in write-protect switch helps to safeguard against the accidental erasure of card data.