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This DB9 male solderless breakout connector is engineered for RS232 D-SUB 9-pin serial port signal splitting and wiring. Adopting solderless terminal structure, it enables fast and neat wire connection without welding tools. Equipped with black rubber core, protective outer case, matching screwdriver and long fixing bolts, all accessories are included for direct assembly and installation. The sturdy casing provides excellent protection against dust, collision and loose contact, ensuring stable serial signal transmission. Ideal for industrial serial devices, PLC connection, circuit testing, equipment modification and all kinds of RS232 serial communication wiring projects.