MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with operating temperatures ranging from -65°C to 200°C. These connectors come in various configurations, including front and rear wall mount, jam nut, and box mount receptacles. Offered in aluminum shells with plating options like cadmium and nickel, they ensure reliable performance with RoHS certified finishes. Ideal for military applications, these circular plugs, with gold-plated removable crimp contacts, provide EMI protection and comply with MIL-DTL-38999 II specifications. Suitable for straight plug mounting, they guarantee durability with a service rating of M and 500 mating cycles, making them perfect for demanding environments.