Micro sd card micro sdxc card memory size 64 gb read speed 95 mbs write speed 20 mbs bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 27 36 v series lexar high performance suitable for full hd recording 3d recording 4k recording device class tablet pc mobile phone manufacturers warranty lifelong standard sd 30 sdhc class 10 uhs speed class u1 adapter usb adapter dimensions 15 mm x 11 mm x 1 mm weight