Patent ID: 7168961

Claim:
An expansible interface for expanding different kinds of data from a primary printed circuit board (PCB) to a subsidiary PCB, the expansible interface comprising: two first connectors on a lower side of the primary PCB; two corresponding first connectors on an upper side of the subsidiary PCB; two second connectors respectively disposed respectively on an upper side and the lower side of the primary PCB, wherein the two second connectors are two Peripheral Component Interconnect (PCI) interfaces that cooperate to act as a common PCI interface; and two corresponding second connectors disposed on the upper side of the subsidiary PCB; wherein said two first connectors are directly electrically connected with said two corresponding first connectors, for transmitting a first kind of data from the primary PCB to the subsidiary PCB, thus the primary PCB is stacked in parallel with the subsidiary PCB; and said two second connectors are electrically connected with said two corresponding second connectors via cables for transmitting a second kind of data from the primary PCB to the subsidiary PCB.