The 1734098-4 is CHAMP .050 Series I Connectors. These connectors offer high--density “D” Type mating interfaces with 1.27 x 2.54 [.050 x .100] contact centerline spacing. The connectors terminate 0.64 [.025] centerline unshielded flat ribbon cable with insulation displacement contacts and 40 position size. Receptacle connectors are available in free--hanging unshielded all plastic configurations and are supplied with the termination cover pre--assembled.