Micro sd card micro sdxc card memory size 64 gb read speed 90 mbs write speed 80 mbs bus interface uhs i file format exfat operating voltage 27 36 v suitable for full hd recording 4k recording 360 recording 3d recording sports photography device class digital camera dslr camcorder computer tablet pc mobile phone functions write protection switch manufacturers warranty 10 years standard sd 301 sdhc class 10 uhs speed class u3 adapter wi