663 Series right angle dual D-Sub plug over receptacle connector each with 9 pin type contacts that have 15µ" gold plating. The contacts are standard dual port 90° bend PCB termination. The board mounting features are 4 prong boardlocks the centre to centre spacing is .750" (19.05mm) andthe flange is mounted with Ø.120" (Ø3.05mm) through holes.