A versatile adaptor device to connect together devices having built-in connectors or receptacles for interfacing with other devices is described. Many devices include built-in connectors, which usually consist of proprietary fittings and pinouts/lineouts. The adaptor device connects with the built-in connectors of two devices to enable communication between the two devices. Each end of the adaptor fits physically and electrically with the connectors to join both devices. The body of the adaptor is a double-ended molded plastic part that includes geometry to mate with a particular connector slot at one end and another specific connector slot at the opposing end. The adaptor device may be adapted to connect various different types of devices. For example, the adaptor accommodates connection to an array of brands and models of cellular phone devices at one end of the adaptor and an array of digital cameras at the other end of the adaptor. The manufacture of the adaptors is leveraged because the adaptor employs a minimum common denominator set of circuit lines available to interact with multiple different connectors.