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This DB9 female solderless breakout adapter is built with standard 9-pin D-SUB interface for RS232 serial communication conversion and wiring arrangement. Featuring solderless terminal design, it supports fast wire installation without soldering, saving time and effort. Comes fully equipped with black rubber core, protective outer case, professional screwdriver and long fixing bolts for easy assembly right out of the box. The durable protective casing offers great dustproof and anti-vibration performance, ensuring steady signal transmission and long-term service life. Perfect for serial device connection, circuit testing, industrial wiring, PLC installation and electronic DIY applications.