5745990-4 is a right-angle posted D-subminiature plug connector from the AMPLIMITE series, designed for reliable PCB-to-panel interconnections. This shell size 1 connector features 9 contact positions and is preloaded with size 20 DF posted pin contacts with duplex plating (0.000030" gold on mating end, tin on termination end, with nickel underplating). The connector has dimensions of A: 1.213" (30.81 mm) and B: 0.984" (24.99 mm), with a D dimension of 0.235" (5.97 mm) and E dimension of 0.965" (24.51 mm). It features threaded inserts for mounting hardware and a 0.590" (14.99 mm) board mount footprint. This RoHS-compliant connector is ideal for applications requiring secure right-angle connections in industrial, telecommunications, and computing equipment.