Designed for extreme sports and action photography, 4K UHD video, and memory expansion in your Android smartphone, tablet, or action camera, the 256GB EVO+ microSDXC Memory Card from Samsung features a storage capacity of 256GB, is compatible with the UHS-I bus, and features a speed class rating of U3, which guarantees minimum write speeds of 30 MB/s. If you're using this card in a device that only supports the U1 speed class, minimum write speeds are guaranteed not to drop below 10 MB/s. Read speeds are supported up to 95 MB/s and write speeds max out at 90 MB/s.

Built for extreme conditions, Samsung's 256GB EVO+ microSDXC Memory Card can survive for up to 72 hours in seawater, endure operating temperatures ranging from -32 to 158°F, withstand airport x-ray machines, and resist magnetic fields equivalent to a high-field MRI scanner. Included is an SD adapter, allowing this microSDXC card to be used in compatible SD card slots.