This backbone supports all components of the module including: 11 km of wiring, 33 engines, four tanks with 2000 litres of propellant each, tanks with enough water and air for the crew during their mission and four seven-metre solar arrays providing enough electricity for two households.

From October 2020, the module and its components arrived to Airbus Space in Bremen, Germany, for assembly. The parts came from over 20 companies across more than 10 European countries, a testament to the cooperative effort behind this project.