Patent ID: 8423695

Claim:
A circuit board assembly, comprising: a circuit board; a first bus interface connector mounted to the circuit board, the first bus interface connector configured for a Peripheral Component Interconnect-Extended (PCI-X) interface protocol; a second bus interface connector mounted to the circuit board, the second bus interface configured for a Peripheral Component Interconnect-Express (PCI-E) interface protocol; an integrated circuit chip or chip set mounted to a first surface of the circuit board and configured to interface with at least one of the first and second bus interface connectors; a first set of connector ports selectively coupled to the chip or chip set when the first bus interface connector is enabled; and a second set of connector ports selectively coupled to the chip or chip set when the second bus interface connector is enabled; wherein the first and second sets of connector ports are mounted centrally onto a second surface of the circuit board, opposite to the first surface; and wherein the circuit board is insertable into a motherboard by selectively inserting either the first or the second bus interface connector into a corresponding slot of the motherboard.