Abstract: A container for retaining printed circuit (PC) cards is provided with transverse and longitudinal dividers positioned respectively in upper and lower levels of the container base. The interior of the base, formed like an open top box, is lined on its side, front and rear walls with panels providing regularly spaced apart slots. The sides of the dividers also carry the panels of regularly spaced apart slots. The transverse dividers extend between the side walls while the longitudinal dividers extend between the front and rear walls with the ends of the dividers being retained in the wall slots. The transverse and longitudinal dividers are arranged in the base perpendicular to one another and are selectively insertable in the wall slots adjustably to retain PC cards of various lengths and widths therebetween.