A device for positioning at least one multiple round plug on a profiled support, including an adapter with a plurality of external functional surfaces wherein a first functional surface having latch-type profiles is provided for snap fastening the adapter onto the profiled support, and a further functional surface, offset from the first functional surface is provided with a retaining device for releasable attachment of the housing of a round plug. The adapter includes at least one space which is open toward at least one external functional surface and through which flexible cables can pass.