MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Offering various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors come in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, they ensure secure connections in applications requiring durability. With aluminum shells and multiple plating options such as cadmium and nickel, they provide reliable performance in diverse settings. Compliant with RoHS regulations, these connectors are ideal for military and industrial use.