Microsdhc cards offer higher storage for more music more videos more pictures more games more of everything you need in todays mobile world the microsdhc card allows you to maximize todays revolutionary mobile devices kingstons microsdhc cards use the new speed class rating of class 4 that guarantee a minimum data transfer rate of 4mbsec for optimum performance with devices that use microsdhc identical in physical size to todays standard microsd card the microsdhc cards are desi