664 Series right angle dual D-Sub receptacle over plug connector each with 25 pin type contacts that have 30µ" 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 .900" (22.86mm) andthe flange is mounted with Ø.120" (Ø3.05mm) through holes.