A defined Active Thermal Control System (ATCS) Kit has been generated for the International Standard Payload rack (ISPR) in the U.S. Laboratory (U.S. Lab). This Kit, consisting of a Payload heat exchanger and set of coldplates, provides a mechanism to transport the heat load generated by the experiments to Internal Thermal Control System loops. This paper gives an overview of the ISPR Kit that will be available in the International Space Station Alpha (ISSA).