Micro sd card micro sdxc card memory size 64 gb read speed 85 mbs bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 2 7 3 6 v series silicon power colorful suitable for full hd recording device class digital camera dslr camcorder tablet pc mobile phone computer printer macbook standard sd 301 sdhc class 10 uhs speed class u1 adapter sd card adapter dimensions 15 mm x 11 mm x 1 mm weight 04 g