An electrical connector for a shielded, twisted-pair cable comprises a conductive isolator body, multiple conductive contacts, inner and outer insulators, and inner and outer ferrules. The isolator provides electrical shielding and isolation for the contacts and untwisted portions of the wires connected to the contacts. The inner and outer insulators prevent contact between the contacts and between the contacts and the isolator, an outer shell, or a connector insert. The inner ferrule maintains electrical contact between the isolator and the shielding sheath of the cable. The outer ferrule retains the inner ferrule in place and can establish continuity between the isolator and the outer shell or connector insert.