Patent ID: 7499285

Claim:
A control device used for a computer motherboard on which a plurality of interface cards is inserted: a circuit motherboard which is connected and fixed on a bottom surface of a computer casing, with an L-shape notch being opened at a corner of the circuit motherboard, and a side edge of the L-shape notch being welded with a vertical slot; a riser card, a side surface at a bottom end of which is welded with a transversal slot, and a bottom end at a side of which is provided with a conduction pin which is inserted into the slot of the circuit motherboard, enabling the riser card to be positioned vertically on the circuit motherboard; and a standardized interface short card, an inner end of which is provided with a conduction pin which is inserted into the transversal slot, and primary area of which is emplaced into the L-shape notch, such that a surface of the standardized interface short card is substantially on a same horizontal plane as that of the circuit motherboard.