●Capacity: 256GB, Reading Speed: Up to 100MB/s read speed for 4K UHD recording and fast playback ●Comes with a convenient SD adapter. By using the adapter, you can easily transfer data in your micro SD from your smartphone or other devices with SD slots ●Perfect solution for data transfer between computer and Android smartphone, tablet PC, camera, DSLR and HD camcorder ●(Equipped with Durable Protection Protection) Waterproof, heat-resistant, shockproof, magnetic, and X-ray resistant function for a wide range of uses