Modular backboard structure

The utility model provides a modular backboard structure. The modular backboard structure comprises a base, a circuit board, a plurality of connectors and an outer cover, the circuit board is arranged on the base. The plurality of connectors are arranged on the circuit board and are arranged at equal intervals along a first direction. The outer cover includes a plurality of openings. The outer cover, the circuit board, the connector and the base are sequentially stacked in the second direction, the outer cover forms a first surface, the base forms a second surface, and the first surface and the second surface are opposite in the second direction. The outer cover is connected with the base to form a back plate first side and a back plate second side which are opposite to each other in the first direction. The connectors respectively protrude out of the first surface through the openings. Any two adjacent connectors have a first spacing distance, a second spacing distance is arranged between the first side of t