Electric, electronic, electromagnetic, optical, fiber-optic and optoelectronic connectors, in particular plug-in connectors; devices of all kinds for electric, electronic, electromagnetic or optical connection and networking, in particular for electric, electronic, electromagnetic or optical components; electric contacts, contact pins and sleeves, electric conductors, cable boxes, fasteners, in particular fastening clips; plugs, plug-in connectors, connection units and boxes, couplings, contacts, bushings; male and female headers for electric lines; ribbon cable; multiple plug-in connectors; interfaces, including for data processing and/or data processing apparatus and machines; ports, connection units and cable connectors for measuring apparatus; attachment plugs; power terminals, in particular power connectors; electric cable assemblies; networking and wiring systems; switches; parts and components for all the aforesaid goods, electrotechnical and electromechanical components included in this class, in particular plug-in connectors, plugs, switches, switching equipment, relays, sensors, electric and electronic components, sockets and plugs, electric contacts, contact inserts, anti-kink sleeves, protective caps, insulating elements, solder tabs, contact bushings, sleeve contact plugs, and parts therefor, connector housings, cable fittings, resistances, clips, patch panels