A passive cold storage container system includes a container bounding a storage area with at least one heat sink module disposed therein. A first storage unit having a compartment is also disposed within the storage area. A first tray is removably disposed within the compartment of the first storage unit, the first tray having a floor with a top surface and a plurality of spacers upstanding from the top surface of the floor and being spaced apart. A plurality of medicinal carriers are disposed on the first tray between the spacers, each medicinal carrier housing a medicinal preparation. A first retention plate is disposed within the compartment of the first storage unit and is positioned over the plurality of medicinal carriers.
