Micro sd card micro sdhc card memory size 16 gb read speed 20 mbs write speed 12 mbs file format fat32 operating voltage 2 7 3 6 v device class mobile phone tablet pc computer dslr digital camera camcorder printer macbook standard sd 20 sdhc class 10 adapter usb adapter sd card adapter dimensions 15 mm x 11 mm x 1 mm weight 04 g