A first extremely high frequency, EHF, shielded connector assembly configured to be coupled with a second EHF shielded connector assembly, the first EHF connector assembly comprising: a first EHF communication unit (108, 122) operative to contactlessly communicate EHF signals with a second EHF communication unit (116, 124) included in the second EHF shielded connector assembly; and a connector interface comprising: a configuration to interface with a respective connector interface of the second EHF shield connector assembly; and a plurality of material compositions that, in conjunction with the configuration, shield the first EHF assembly connector when it is coupled to the second EHF connector assembly and reduce EHF signal leakage when the first EHF communication unit is contactlessly communicating EHF signals with the second EHF communication unit; and, a controller operative (110, 1510) to control operations of the first EHF communication unit; and a third EHF communication unit (112, 122) operative to contactlessly communicate EHF signals with a fourth EHF communication unit (120, 124) included in the second EHF shield connector assembly, wherein the connector interface reduces EHF signal leakage when the first EHF assembly connector is coupled to the second EHF assembly connector and the third EHF communication unit is contactlessly communicating EHF signals with the fourth EHF communication unit; an EHF fence positioned between the first and third EHF communication units to prevent cross-talk between the first and third EHF communication units. a first EHF communication unit (108, 122) operative to contactlessly communicate EHF signals with a second EHF communication unit (116, 124) included in the second EHF shielded connector assembly; and a connector interface comprising: a configuration to interface with a respective connector interface of the second EHF shield connector assembly; and a plurality of material compositions that, in conjunction with the configuration, shield the first EHF assembly connector when it is coupled to the second EHF connector assembly and reduce EHF signal leakage when the first EHF communication unit is contactlessly communicating EHF signals with the second EHF communication unit; and, a configuration to interface with a respective connector interface of the second EHF shield connector assembly; and a plurality of material compositions that, in conjunction with the configuration, shield the first EHF assembly connector when it is coupled to the second EHF connector assembly and reduce EHF signal leakage when the first EHF communication unit is contactlessly communicating EHF signals with the second EHF communication unit; and, a controller operative (110, 1510) to control operations of the first EHF communication unit; and a third EHF communication unit (112, 122) operative to contactlessly communicate EHF signals with a fourth EHF communication unit (120, 124) included in the second EHF shield connector assembly, wherein the connector interface reduces EHF signal leakage when the first EHF assembly connector is coupled to the second EHF assembly connector and the third EHF communication unit is contactlessly communicating EHF signals with the fourth EHF communication unit; an EHF fence positioned between the first and third EHF communication units to prevent cross-talk between the first and third EHF communication units.