Micro sd card micro sdxc card memory size 64 gb bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 27 36 v series a data premier device class digital camera dslr camcorder mp3 player tablet pc mobile phone computer printer macbook functions ecc standard sd 30 sdhc class 10 uhs speed class u1 adapter sd card adapter dimensions 15 mm x 11 mm x 1 mm weight 04 g