A connector with a capacitively coupled connector interface for interconnection with a mating portion with a sidewall. A connector body has an outer conductor coupling surface at an interface end, covered by an outer conductor dielectric spacer. The outer conductor coupling surface is dimensioned to seat, spaced apart from the sidewall by the outer conductor dielectric spacer, when the connector body and the mating portion are in an interlocked position. A releasable retainer may be provided, the releasable retainer dimensioned to secure the connector body and the mating portion in the interlocked position.