MIL-DTL-38999 Series II connectors are engineered for rugged environments, featuring up to 128 contacts sealed for protection. With an extensive operating temperature range of -65 °C to 200 °C, they offer reliable performance in harsh conditions. Available in various configurations like front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure versatile connectivity. Crafted with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they guarantee durability and compliance. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements, accommodating diverse applications. The inclusion of gold-plated removable crimp contacts and bayonet coupling enhances their functionality, while their environment-resistant design makes them ideal for military and industrial use. With a service rating of I and a mating life of 500 cycles, these connectors deliver reliable performance in demanding scenarios.