A cable connector module includes a housing having a cavity and a cable connector module received in the cavity. The cable connector module includes a circuit card having rows of signal contact pads on a mounting surface. The cable connector module includes cable assemblies terminated to the circuit card arranged in rows each having a cable and a ground clip coupled to an end of the cable. The cable connector module includes a cable holder coupled to the housing that holds the cables assemblies relative to each other within the cavity of the housing.