Micro sd card micro sdxc card memory size 64 gb read speed 80 mbs write speed 20 mbs bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 27 36 v series pny high performance suitable for full hd recording device class tablet pc mobile phone computer dslr digital camera camcorder 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