A connector includes a ground frame, an insulator held by the ground frame and having a connection target housing portion, a contact having a contact portion and held by the insulator such that the contact portion is exposed at the connection target housing portion, and a cover member held by the ground frame to be rotatable between an open position and a closed position and having a cover member side locking portion, the ground frame having a projection that is fitted to a positioning shaped portion of the connection end of the connection target, when the connection end is housed in the connection target housing portion, to position the connection target and that catches on the cover member side locking portion, when the cover member is in the closed position, to lock the cover member in the closed position.