Micro sd card micro sdhc card memory size 32 gb read speed 90 mbs write speed 45 mbs bus interface uhs i file format fat32 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 mp3 player mobile phone printer macbook functions write protection switch sdhc class 10 uhs speed class u1 adapter sd card adapter operating