MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer durability in extreme conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors, compliant with military specification MIL-DTL-38999 II, come in aluminum shells with plating options such as electroless nickel and cadmium finishes. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity. Suitable for applications requiring high performance in challenging settings, these connectors are a dependable choice for military and industrial use.