An apparatus includes a pass-through module that includes connector pins to connect with at least one active portion of a motherboard connector and to separately connect with at least one inactive portion of the motherboard connector. A routing function on the pass-through module redirects a set of bidirectional lanes from the connector pins connected to the active portion of the motherboard connector to the connector pins connected to the inactive portion of the motherboard connector to enable a connection of the set of bidirectional lanes to at least one other motherboard resource connected to the inactive portion of the motherboard connector.