1 Pair DB9 Male & Female RS232 Breakout Boards, 9Pin D-SUB Solderless Terminal Signal Module with Protective Housing & Long Mounting Bolts (Type B)

This Type B set consists of one DB9 male breakout board and one DB9 female breakout board, converting standard 9-pin D-SUB RS232 serial signals into independent screw terminals for easy signal splitting, circuit transformation and equipment fault inspection.

The solderless terminal structure allows users to attach, adjust and replace wires only with a screwdriver, saving preparation time and avoiding welding damage. Each breakout module is equipped with a dedicated protective housing to fully cover exposed metal contacts, lowering short-circuit risks in dusty workshop environments.

Equipped with customized long fixing bolts, the two modules can be stably mounted on rack panels, control boxes and laboratory test benches. All terminals are printed with corresponding DB9 pin numbers for instant identification during wiring maintenance.

It supports standard RS232 serial transmission and works seamlessly with industrial PLC controllers, frequency converters, barcode scanners, access control systems and serial test instruments. A practical wiring auxiliary tool for automation maintenance and electronic testing work.