MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in a sealed insert. With a wide operating temperature range of -65 °C to 200 °C, they provide reliable performance in extreme conditions. Available in various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, these connectors feature bayonet coupling for secure connections. Utilizing M39029 rear release crimp contacts, they ensure efficient and durable electrical connections. Constructed with aluminum shells and plated with options like electroless nickel and cadmium olive drab, they meet stringent military specifications. Perfect for applications requiring rugged and reliable connectivity, these connectors are a vital component in demanding environments.