US Patent 7106577 Circuit board group for electrically coupling electronic devices

The present invention discloses a circuit board group for electrically coupling electronic devices, which comprises a circuit board group having a primary circuit board and at least one secondary circuit board. A second connection port coupled to a first connection port is disposed on the secondary circuit board at the corresponding side of the primary circuit board, and a third connection port coupled to an electronic device is disposed on the other side, and the number of the third connection ports corresponds to that of the electronic devices. The present invention increases the number of installable electronic devices by increasing the number of third connection ports.