MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering robust environmental sealing and a wide operating temperature range of -65 °C to 200 °C. These connectors, available in various configurations such as front and rear wall mount, jam nut, and box mount receptacles, are designed for harsh environments. With options for straight, RFI grounding, and standard plugs with a 90-degree cable clamp, they cater to diverse connectivity needs. The connectors, compliant with military specification MIL-DTL-38999 II, utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering plating choices like cadmium and nickel, they ensure durability and reliability. Suitable for applications requiring high mating cycles and environmental resistance, these connectors are a dependable solution for demanding settings.