The present invention pertains to a board connector comprising: a plurality of radio frequency (RF) contacts for transmitting RF signals; an insulating part that supports the RF contacts; a plurality of transmission contacts which are coupled to the insulating part between a first RF contact and a second RF contact, among the RF contacts, such that the first RF contact and the second RF contact are spaced apart from each other in a first axial direction; and a ground housing to which the insulating part is coupled, the ground housing comprising a ground inner wall facing the insulating part, a ground outer wall spaced apart from the ground inner wall, and a ground connection wall coupled to each of the ground inner wall and the ground outer wall, wherein the ground inner wall and the ground outer wall are double-shielding walls surrounding the side of an inner space, the first RF contact and the second RF contact are located in the inner space surrounded by the double-shielding walls, and each of the ground inner wall and the ground outer wall contacts the ground housing of a counter connector inserted into the inner space.