Securedigital sd sdhc card memory size 16 gb read speed 20 mbs write speed 20 mbs bus interface uhs i memory type mlc file format fat32 operating voltage 27 36 v device class macbook dslr digital camera printer camcorder functions ecc write protection switch standard sd 30 sdhc class 10 dimensions 32mm x 24mm x 21mm weight 2 g