The present invention provides a connector including a body having insulation properties and a terminal group. The terminal group includes a pair of first signal terminals, a second signal terminal, and a third terminal that are arrayed in a row along a first direction in the body. The first signal terminals are adjacent to each other in the first direction. The third terminal is disposed between one of the first signal terminals and the second signal terminal. The third terminal includes a shielding portion extending in a direction crossing the first direction.