A cage is provided for a receptacle assembly that includes a receptacle connector. The cage includes an electrically conductive body comprising an upper wall, a lower wall, and side walls that extend from the upper wall to the lower wall. The body has a front end and an internal compartment. The front end is open to the internal compartment of the body. The internal compartment is configured to hold the receptacle connector therein. The internal compartment is configured to receive a pluggable module therein through the front end. A connector cover is integrally formed with the lower wall of the body. The connector cover extends within the internal compartment of the body. The connector cover includes an interior chamber that is configured to hold the receptacle connector therein such that the cover extends over at least a portion of the receptacle connector.