Micro sd card micro sdxc card memory size 64 gb read speed 45 mbs write speed 10 mbs bus interface uhs i file format exfat operating voltage 27 36 v suitable for full hd recording device class digital camera mp3 player tablet pc mobile phone manufacturers warranty lifelong standard sd 301 sdhc class 10 uhs speed class u1 adapter without adapter protective properties waterproof shockproof x ray resistant temperature resistant dimensions