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 configurations including front and rear wall mount, as well as jam nut and box mount receptacles, they provide flexibility for different applications. The connectors come in aluminum shells with options for plating finishes such as gold, electroless nickel, and cadmium-free coatings. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Suitable for military and industrial use, these connectors meet the stringent requirements of MIL-DTL-38999 II specifications.