The MIL-DTL-38999 Series II connectors are designed for rugged applications, offering up to 128 contacts within an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors ensure reliable performance in harsh environments. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. Made of durable aluminum, they come with plating options including electroless nickel and cadmium finishes. Meeting military specification MIL-DTL-38999 II, these connectors guarantee high performance and longevity in demanding applications.