Technical description kingston secure digital16gb high capacity class 4 sd416gb storage flash memory starting at 4gb sdhc cards offer larger volume data storage and optimized recording performance with support for fat 32 file formats in addition kingstonrsquos sdhc cards use new speed class ratings known as class 2 4 and 6 that deliver a minimum data transfer rate for optimum performance with sdhc devices although identical in size to todays standard sd card the new sdhc cards ar