The OWC Atlas Ultra 128GB UHS-II SDXC memory card features V90 performance, with read speeds up to 304 MB/s and write speeds up to 216 MB/s. Ideal for 6K and 4K video, RAW photography and burst shooting, it delivers a minimum sustained write speed of 90 MB/s. Water- and dust-proof, with resistance to bending, shock and X-rays, it also includes a write-protect switch.