The 2-917658-3 is a vertical-type board-mounting header connector from TE Connectivity's Dynamic Series, designed for double-row high-voltage modular applications with a 5.08mm pin pitch. This connector features a 12-position configuration with gold plating and an L-bracket mounting style, providing robust mechanical support and reliable electrical connections. The connector is housed in a black thermoplastic body and is RoHS compliant, meeting modern environmental standards. It is commonly used in industrial control panels, elevator systems, and other high-reliability applications requiring modular connectivity and secure board mounting.