MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. These connectors feature various mounting options, including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. With an operating temperature range of -65 °C to 200 °C, they are ideal for demanding applications. The connectors are made of aluminum and come with plating options such as cadmium and nickel for corrosion resistance. RoHS certified finishes are also available. Suitable for military and industrial use, these connectors ensure reliable performance in challenging conditions.