Securedigital sd sdxc card memory size 64 gb read speed 94 mbs bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 2 7 3 6 v series sony expert device class car radio macbook tv dslr digital camera camcorder computer printer labeling field functions write protection switch manufacturers warranty 5 years standard sd 301 sdhc class 10 uhs speed class u3 protective properties x ray resistant waterproof shoc