MIL-DTL-38999 Series II connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With an operating temperature range spanning from -65 °C to 200 °C, these connectors ensure reliability 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, compliant with military specification MIL-DTL-38999 II, boast durability with aluminum shells and offer flexibility with multiple plating options such as electroless nickel and cadmium finishes. Utilizing M39029 rear release crimp contacts, they provide secure connections with gold-plated removable crimp contacts. Ideal for demanding environments, these connectors guarantee performance with a service rating of I and a mating life of 500 cycles.