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 styles including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility. With options for straight, RFI grounding, and standard plugs, they cater to different installation needs. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity. Constructed with aluminum shells and offering plating choices such as electroless nickel and cadmium finishes, they meet diverse requirements. RoHS compliant options are also available, making them suitable for a range of applications requiring durability and performance in challenging conditions.