An electronic device (1) suitable for use on board a spacecraft, including a motherboard (2) electrically connected to daughterboards (3a, 3b, 3c), the motherboard and the daughterboards each include a support plate (4a, 4b, 4c, 5) in order to form a printed circuit board, each support plate extending in a respective main plane, wherein each daughterboard includes a first electrical connector (6a, 6b, 6c, 6d) fixed to its support plate and the motherboard includes a corresponding number of second connectors (7a, 7b, 7c, 7d) fixed to the support plate of the motherboard, each first electrical connector engages with one of the second connectors, the first electrical connector of each daughterboard is arranged on a portion of the support plate forming a tab (8a, 8b, 8c, 8d) configured for deflection relative to the main plane of the printed circuit board.