Abstract: A transceiver assembly includes a receptacle guide frame configured to be mounted to a host circuit board, where the receptacle guide frame has a front being open to an interior space, and where the receptacle guide frame is configured to receive a pluggable module through the front. A receptacle connector is received within the interior space of the receptacle guide frame at a rear of the receptacle guide frame. The receptacle connector includes contacts having contact tails configured to be mounted to a circuit board. The contacts have retention sections positioned at a predetermined location relative to the contact tails, and the contacts have mating sections configured for mating with a mating connector. A housing holds the contacts and has a front and a rear with a cavity at the front being configured to receive the mating connector. The housing has a shelf at the rear. A stuffer bar is separately provided from the housing and securely coupled to the rear of the housing.