The MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an insert, offering versatility in connectivity. With an operating temperature range of -65°C to 200°C, they ensure reliable performance in extreme conditions. Various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, cater to different installation needs. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 crimp contacts for secure connections. Constructed with aluminum shells and offering multiple plating options, such as cadmium and nickel, they meet rigorous military specifications. RoHS compliant finishes are also available. With EMI/RFI shielding and high mating life, these connectors are ideal for demanding applications requiring durability and reliability.