A spacer-connector and connection arrangements between daughter boards and motherboards are disclosed. Assemblies may include a daughter board one or more spacer-connectors spacing the daughter board above a motherboard and conductive elastomers providing electrical connections between the daughter board and spacer- connector and between the spacer-connector and the motherboard. The spacer-connector may include ground, power, digital and/or controlled impedance RF pathways to conduct signals between the daughter board to the mother board.
