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, available in nine shell sizes, offer various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Compliant with military specification MIL-DTL-38999 II, they ensure reliable performance with gold-plated removable crimp contacts. Constructed with aluminum shells and electroless nickel coating, these connectors guarantee durability and conductivity. Ideal for demanding applications, they provide EMI/RFI shielding and are resistant to environmental factors, meeting service class E standards. With a service rating of I and a mating life of 500 cycles, these connectors are perfect for critical operations.