Micro sd card micro sdxc card memory size 64 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 series integral ultimapro x suitable for full hd recording 4k recording 360 recording 3d recording sports photography device class digital camera dslr camcorder computer tablet pc mobile phone printer macbook manufacturers warranty 5 years standard sd 301 sdhc cla