Rack module, was single storage unit for Cryogenic pods developed by Kushan. Each Rack Module contained 100 Cyro Pods and was filled with buffer fluid. Kushans made no less than 6000 such modules. Each was filled with Pods taken from underground storage places, and then Rack Module was taken on orbit by Heavy Lifter Unit. When ship reaches orbit these modules were put into Cryo Tray, each tray contained one thousand such modules.