a connector 40 having cylindrical non metallized cavities 36 accommodating terminals 37 which may be connected to a cable 39 each cavity 36 is surrounded by a plurality of cylindrical additional metallized through holes 41 additional through holes 41 have a smaller diameter than the diameter of the cavities 36 the bridges 47 between adjacent cavities 36 are much thicker than the corresponding bridges 46 in fig7 a this provides for more mechanical stability although cross talk reduction between terminals in adjacent cavities will be less than in the embodiment according to fig5 and 7a fig8 a and 8b show connectors 35 provided with coaxial shielded terminals 37 in the embodiment of fig8 a each cavity 36 39 which may have a circular cross section is entirely metallized to prevent a short circuit to the terminal 37 which may be connected to a cable 39 an insulating sleeve 45 is provided between the side wall of cavity 36 39 and the terminal 37 as a further shielding measure the housing 34 39 of connector 35 according to the embodiment of fig8 a may be metallized instead of the metallized connector 35 according to the embodiment of fig8 a also a non metallized connector 35 according to the embodiment of fig8 b can be used in that case connector 35 may comprise non metallized additional holes 38 and a non metallized housing 34 then an externally metallized plastic sleeve 45 39 is used between the side wall of the cavity 36 and the terminal 37 note that in.