MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with a wide operating temperature range of -65°C to 200°C. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure reliable connectivity. These connectors, crafted from durable aluminum, come with options for plating finishes like electroless nickel and cadmium, meeting stringent military specifications for environmental resistance. Perfect for demanding applications, they provide secure and efficient electrical connections in challenging conditions.