The Zeus Mk II CL (Clipper) is a medium freight spacecraft manufactured by Roberts Space Industries (RSI). One of three variants on the Zeus Mk II series, it includes a tractor beam to facilitate the easy loading and unloading of cargo, as well as a cargo bay four times larger than that of the Zeus Mk II ES. It is equipped with weaponry and shielding to defend the lives of its crew during missions, as well as living quarters to facilitate long-term travel.