To provide an equal-length wiring structure which can reduce noise irradiated from equal-length wiring by transmission and reception of a plurality of signals, and provide a recording device and an electronic device having the equal-length wiring structure.

A CPU 10 formed on a main control board 11 and a RAM 13 formed on the main control board 11 to be spaced from the CPU 10 are connected by a plurality of equal-length wiring lines 12 formed on the main control board 11 to transmit or receive a signal. Bypass extended wiring parts 14b and 14c are spirally formed in wiring lines 12b and 12c other than a predetermined wiring line 12a among the plurality of equal-length wiring lines 12. Consequently, even when the structure transmits or receives a plurality of signals, the structure can produce less reflection and thus can reduce noise irradiated from the equal-length wiring lines 12.