MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, as well as straight, RFI grounding, and standard plugs with a 90-degree cable clamp. These connectors, compliant with military specification MIL-DTL-38999 II, utilize M39029 rear release crimp contacts and come in aluminum shells with plating options such as gold, electroless nickel, and cadmium-free finishes. With a service rating of M and service class E, they offer reliable performance for demanding applications requiring EMI/RFI shielding and environmental resistance.