9-Position D-Sub, 6A, with 4-40 Screwlock — the Standard DB-9 Receptacle
The mating-side female screwlock accepts a 4-40 jack-screw, giving a positive mechanical lock to the mating plug. Two rows, 9 positions total — the pinout maps to the classic DE-9 layout.
6A per Contact — What That Means for Signal vs Power Duty
6A per contact is the headline current rating. The 9-position layout and 125V voltage rating define the harness limits.
