Systems and methods for mounting of plug-in electronic dongles are provided. In one embodiment, an electronics mounting adapter device comprises: a base member that includes a cavity and at least one cable stabilizing element configured to secure a cable connector of a cable within the cavity, wherein the cable is routed though an opening in the base member into the cavity; a cover coupled to the base member by at least one fastener; one or more mounting provisions for securing the base member to a mounting surface; and at least one clamping element configured to clamp a dongle within the cavity, wherein the dongle is coupled to the cable connector.