Electrical connector receptacle cage with interlocking upper and lower shells

A small form-factor pluggable (SFP) cage, comprising:

• an upper shell having a top wall extending between front and back ends, said upper shell having a rear wall closing said back end and having side walls extending between said front and back ends, said upper shell having base portions integral with bottoms of said side walls and extending parallel to said top wall;
• pins extending downward from said side walls, said pins being formed integral with said side walls;
• ground members formed integral with said upper shell, said ground members being located proximate said front end, said ground members protruding outward from said upper shell;
• and
• a lower shell having a bottom wall and interlocking members extending from a front end of said bottom wall, said interlocking members snappably engaging said base portions of said upper shell, said upper and lower shells joined to one another to form a module retention chamber, said module retention chamber having an open front end, said module retention chamber being configured to accept an SFP module.