Disclosed is an electronic device which includes a plurality of memory devices, a memory controller, a first signal line that makes electrical connection between the memory controller and a first branch point, a second signal line that makes electrical connection between the first branch point and a second branch point, a third signal line that makes electrical connection between the first branch point and a third branch point, a fourth signal line that electrically connects the second branch point and the first memory device, a fifth signal line that electrically connects the second branch point and the second memory device, a sixth signal line that electrically connects the third branch point and the third memory device, and a stub that includes a first end electrically connected with at least one of the plurality of signal lines, and a second end being left open-circuit.