An electrical connector is provided including a coaxial connector sub-assembly having a stamped and formed outer contact. A dielectric insert is positioned within the outer contact. A center contact extends through the dielectric insert. A ground contact tab extends from the connector sub-assembly and is configured to ground to a substrate. The ground contact tab is configured for one of through-hole mounting or surface mounting to the substrate by selective bending of the ground contact tab. An interface housing receives the connector sub-assembly. A rear housing is coupled to the interface housing. The connector sub-assembly is captured between the interface housing and the rear housing. The rear housing is coupled to the substrate to secure the interface housing to the substrate. The rear housing is configured for one of through-hole mounting or surface mounting to the substrate.