Securedigital sd 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 car radio macbook tv dslr digital camera camcorder computer printer functions write protection switch manufacturers warranty 5 years sdhc class 10 adapter without adapter dimensions 32mm x 24mm x 21mm weight 2 g