In accordance with embodiments of the present disclosure, an interface for an information handling system comprising a connector, wherein the connector comprises a legacy portion and an expanded portion. The legacy portion may comprise a plurality of signal pins defining a first set of lanes of communication between the information handling system and an information handling resource coupled to the connector. The expanded portion comprising a plurality of signal pins defining a second set of lanes of communication between the information handling system and an information handling resource coupled to the expanded portion.