Electronic device

An electronic device that has a plurality of terminals that are not used for communication with a module connected thereto and is able to be connected to the module, the electronic device comprising:

• a connection terminal portion that is electrically connected to a connection terminal portion with a concave shape that is included in the module, the connection terminal portion of the electronic device having a convex shape that fits onto the concave shape of the connection terminal portion of the module, and the connection terminal portion of the electronic device including (i) a power source terminal group in a first surface, and (ii) a ground terminal group and a communication terminal group that is used for communication with the module, the ground terminal group and the communication terminal group being in a second surface on an opposite side to the first surface from among connection surfaces for connection with the connection terminal portion of the module,
• wherein a connection terminal, to which an enable signal generated when the electronic device is connected to the module is input, is arranged in the first surface, and the connection terminal and the power source terminal group are separated from each other by a distance corresponding to predetermined terminals that are not used for communication with the module connected thereto.