The increasing utilization of pressurized modules in the space exploration domain has exposed the limitations of traditional avionic architectures. These legacy systems, typically found in satellites, are structured around monolithic units like the On-Board Computer (OBC) and Remote Terminal Unit (RTU), which bundle a predefined, fixed set of functionalities. This "one box per function" design results in significant inefficiencies in mass, power, and volume. More critically, these architectures lack flexibility. They are highly susceptible to late-stage modifications, which often lead to major cost overruns and schedule delays. As habitable modules require high data rate networks, in-flight reparability, and compliance with strict crew safety standards like CBCS, a more adaptable and scalable solution is necessary.