Micro sd card micro sdxc card memory size 64 gb bus interface uhs i file format exfat operating voltage 27 36 v device class tv digital camera dslr camcorder tablet pc mobile phone computer printer macbook functions write protection switch sdhc class 10 uhs speed class u1 adapter sd card adapter protective properties shockproof dimensions 15 mm x 11 mm x 1 mm weight 04 g