The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With an operating temperature range from -65°C to 200°C, they offer reliable performance in extreme conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, these connectors meet stringent military specifications. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Crafted from aluminum with plating options including electroless nickel and cadmium finishes, they provide durability and conductivity. RoHS compliant options are also available, making them suitable for diverse applications in aerospace, defense, and industrial sectors.