A computer module for electrically coupling a motherboard with add-in cards comprises risers connected to the motherboard and oriented facing toward each other, where the risers are connected to the add-in cards at different elevations above the motherboard, so that the add-in cards are parallel to the...http://www.google.com/patents/US7359216?utm_source=gb-gplus-sharePatent US7359216 - Small-frame computer with overlapping add-in cards
