The MIL-DTL-38999 Series II connectors are designed for demanding 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 reliable performance in extreme conditions. Available in various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse application needs. The connectors come in aluminum shells with plating options such as electroless nickel and cadmium finishes. Utilizing M39029 rear release crimp contacts, they ensure secure connections. With RoHS compliant options, these connectors are ideal for military, aerospace, and industrial applications requiring rugged and reliable connectivity.