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 from -65 °C to 200 °C, these connectors offer reliable performance in demanding conditions. Available in various mounting styles such as front wall mount, rear wall mount, and jam nut receptacles, they cater to diverse installation needs. The connectors come in aluminum shells with plating options including electroless nickel and cadmium finishes, meeting RoHS compliance standards. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Ideal for military and industrial applications, these connectors are known for their durability and conductivity, making them essential components in critical systems.