The MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts housed in an insert and offer reliable performance in extreme conditions with an operating temperature range from -65°C to 200°C. These connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles, as well as straight and RFI grounding plugs. Compliant with military specifications, they utilize M39029 rear release crimp contacts and are available in aluminum shells with different plating options. With RoHS certified finishes, these connectors ensure durability and reliability for demanding applications.