Sdxc card securedigital sd memory size 128 gb read speed 95 mbs write speed 90 mbs bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 2 7 3 6 v suitable for 360 recording sports photography full hd recording 3d recording 4k recording device class digital camera dslr camcorder computer tablet pc mobile phone printer macbook functions write protection switch standard sd 301 sdhc class 10 uhs speed class u3