The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65°C to 200°C, these connectors offer reliability in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The plugs come in straight, RFI grounding, and standard configurations, with 90-degree cable clamps. Built for durability, they are constructed from aluminum shells with plating options like electroless nickel and cadmium finishes. Meeting military specifications, these connectors ensure high performance with their removable crimp contacts and EMI/RFI shielding. Suitable for applications requiring rugged and reliable connectivity, they offer a service rating of I and comply with RoHS regulations.