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 reliability in extreme conditions. Available in various mounting configurations such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors, made of aluminum, come with plating options including electroless nickel and cadmium finishes. Utilizing M39029 rear release crimp contacts, they ensure secure connections. With RoHS certified cadmium-free options, these connectors guarantee compliance with environmental regulations. Suitable for military and industrial applications, they provide durability and performance, making them essential components for critical systems.