The 178-009-513R571 is a dual-port, stacked D-Sub connector with a 9-position, female-over-female configuration. It features a robust nickel-plated steel shell, a UL 94V-0 rated black PA9T insulator capable of withstanding 260°C process temperatures, and gold-plated brass contacts. This connector is rated for 5 amps, has a dielectric strength of 1,000VAC RMS, and operates reliably in a wide temperature range from -55°C to 105°C. Equipped with 4-40 standoffs and board locks for secure mounting, this RoHS-compliant connector is ideal for applications requiring high-density I/O connections in a compact footprint.