MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse application needs. The connectors come in aluminum shells with options for plating including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Suitable for military and industrial applications, these connectors meet stringent performance standards for conductivity and environmental protection.