Micro sd card micro sdxc card memory size 256 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 dslr camcorder computer tablet pc mp3 player mobile phone printer macbook manufacturers warranty lifelong standard sd 301 sdhc class 10 uhs speed class u1 adapter sd card adapter protective properties waterproof shockproof x ray r