MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in a sealed insert. Built to withstand harsh environments, these connectors have a wide operating temperature range from -65 °C to 200 °C. 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 reliable connections. Constructed with aluminum shells and offering multiple plating options, including RoHS certified finishes, they ensure durability and environmental compliance. Ideal for military and industrial applications, these connectors provide secure and efficient electrical connections in demanding settings.