The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliability in extreme conditions. Available in various configurations including wall mount and box mount receptacles, these connectors meet military specifications for durability. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Constructed with aluminum shells and offering multiple plating options, including RoHS certified finishes, they provide versatility for diverse applications. With gold-plated contacts and a bayonet mating type, these connectors guarantee efficient signal transmission. Suitable for harsh environments, they have a service rating of E and ingress protection for reliable performance in demanding settings.