Connectors and methods to couple packages and dies are shown. Selected examples include plugs and receptacles having two or more terraces with contacts provided along the terraces. Examples of connectors and methods include configurations where the connector is usable with a package including a die coupled along a substrate. In selected examples a heat sink is coupled over the die, and a package includes a side access port between the heat sink and the substrate configured to receive the connector, such as one or more of a plug or receptacle through the side access port.