An electrical data connector includes a socket having a socket body that defines a plug connector cavity and electrically conductive shields within the cavity. A plug connector has a plug body telescopically slid into the plug connector cavity. The plug body has an insert cavity and adjacent spring openings, each of the spring openings aligning with a respective one of the shields. A cable head has an insert module telescopically slid into the insert cavity. The cable head includes an electrically conductive fixation element that is fixed to the insert module and fixed to a cable. The fixation element includes integral spring elements that extend generally radially outwardly from the insert module and are each configured to extend through respective spring openings into contact with respective shields.