This sony micro sdxc memory card 40mbs uhs 1 class 10 with adapter 64gb features a maximum read speed of 40mbs and a minimum write speed of 10mbs the class 10 uhs 1 storage device is waterproof dustproof and capable of withstanding extreme temperatures additionally its resistant to static electricity and features a uv guard to protect against ultraviolet rays rra supplied microsd adapter enables use in full size sd card slots downloadable file rescue software helps recover photo