Which specific types of standardized racks were prioritized in the design of the Columbus module to maximize payload diversity?

Answer

ISPRs and EDRs

ESA designed the Columbus module with an emphasis on flexibility, prioritizing standardized interfaces for internal racks known as International Standard Payload Racks (ISPRs) and European Drawer Racks (EDRs).

Which specific types of standardized racks were prioritized in the design of the Columbus module to maximize payload diversity?
SpacecontributionISSSpace StationESA