Abstract: A high frequency electrical connector assembly including a housing defining a plug-receiving receptacle having an entrance opening and contact/terminal members arranged in the housing. The contact/terminal members include at least one forward facing contact/terminal member having a forward facing contact situated in the receptacle and a non-contact portion including a terminal. The forward facing contact has a rearward end coupled to the terminal and a forward end which is closer to the entrance opening than the rearward end. The housing includes an outer housing part and an insert assembly insertable into the outer housing part to define the plug-receiving receptacle and including a securing insert for firmly securing the forward facing contact/terminal member(s) in the housing. The securing insert itself may be secured in connection with the housing to prevent movement thereof.