A high-speed electrical RF, single-ended, or differential/twin axial electrical connector, capable of at least 67 GHz of operable bandwidth. The electrical connector can include at least one signal conductor that is supported by a connector housing that, in turn, is received by an electrical shield. Two such electrical connectors are configured to mate with each other, such that a third electrical shield at least partially surrounds and contacts each of the first and second electrical shields, thereby placing the electrical shields in electrical communication with each other.