Electric connector mounted body, first connector, second connector, module, and module coupled body

An electric connector mounted body comprising:

• a circuit board;
• and
• an electric connector pair mounted on a mount surface of the circuit board, wherein
• the electric connector mounted body is configured to be capable of being coupled with a plurality of other electric connector mounted bodies, taking one predetermined direction as a coupling direction,
• the electric connector mounted body is configured to be capable of mating and connecting to a mating electric connector mounted body adjacent to each side of the electric connector mounted body in the coupling direction, taking, as a mating direction, a forward facing direction in a front-and-back direction perpendicular to the coupling direction,
• each of electric connectors included in the electric connector pair includes a plurality of terminals arranged taking, as a terminal arrangement direction, a direction perpendicular to both of the front-and-back direction and the coupling direction, and a housing that holds the plurality of terminals,
• the electric connector pair includes, as the electric connectors, a first connector mounted on one side of the circuit board in the coupling direction, and a second connector mounted on the other side of the circuit board in the coupling direction,
• the first connector is configured to be capable of mating and connecting to a second mating connector provided to the mating electric connector mounted body,
• the second connector is configured to be capable of mating and connecting to a first mating connector provided to the other mating electric connector mounted body,
• the first connector has no portions that come into contact with the second mating connector from a front and from a back, and
• the second connector has no portions that come into contact with the first mating connector from the front and from the back.