Discover the rugged reliability of MIL-DTL-38999 Series II connectors, engineered for demanding environments with up to 128 contacts housed in a secure insert. Designed for extreme temperatures ranging from -65 °C to 200 °C, these connectors ensure optimal performance in harsh conditions. Featuring a variety of receptacle styles including front and rear wall mount, jam nut, and box mount options, they offer versatility for diverse applications. With 52 insert arrangements and M39029 rear release crimp contacts in various sizes, these connectors provide flexibility for custom configurations. Constructed with aluminum shells and available in different plating finishes including gold, electroless nickel, and cadmium-free options, they meet stringent military specifications. Ideal for aerospace, defense, and industrial applications, these connectors guarantee reliable connectivity in critical operations.