CARD-SAT is a miniaturized satellite concept that has transformed space exploration, making it more accessible. Their standardized size and modular design make them accesible to build and launch, opening up new opportunities for scientific and educational initiatives. CARD-SAT will be a standardized platform for small satellites that will revolutionize space exploration by enabling access to space and a wide range of scientific and engineering missions. At the heart of this success is the CARD-SAT robust and adaptable mechanical structure, which plays a crucial role in ensuring the functionality and durability of the satellite throughout its journey in the harsh environment of space. The base model of a CARD-SAT is 1U, which measures 113.5 mm x 100 mm x 10 mm and typically weighs between 300 and 400 g. A 1-Unit CARD-SAT can accommodate a limited number of payloads, but is an adaptable platform for basic science experiments, communication tests or technology demonstrations, such as testing new components and technologies for space.