Mobile computing devices that include an exterior housing and a port. The housing is configured to form a guide portion of the port. More particularly, the port includes a cavity formed in the housing. The cavity includes interior walls that extend inward from an exterior wall of the housing. The port further includes a connector that is positioned in the cavity. The connector is positioned such that the walls of the cavity form the guide of the connector. The port is further constructed to prevent the ingress of water and/or debris into an interior of the housing.