Micro sd card micro sdxc card memory size 128 gb read speed 80 mbs write speed 20 mbs bus interface uhs i mode of transmission uhs104 file formats fat32 exfat operating voltage 2 7 3 6 v series team group 500x device class digital camera dslr camcorder mp3 player tablet pc mobile phone computer printer macbook functions write protection switch standard sd 301 sdhc class 10 uhs speed class u1 adapter sd card adapter dimensions 15 mm x 11