The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With an operating temperature range from -65 °C to 200 °C, these connectors are environmentally sealed for reliable performance. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Constructed with aluminum shells and offering multiple plating options, such as electroless nickel and cadmium finishes, these connectors ensure durability. Compliant with military specification MIL-DTL-38999 II, they provide secure connectivity in demanding applications.