The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range from -65 °C to 200 °C, these connectors provide reliable performance in extreme conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. Featuring removable crimp contacts and a bayonet coupling, they ensure secure connections. Constructed with aluminum shells and plated with options like electroless nickel, they meet military specifications for durability. With RoHS compliant finishes available, these connectors are suitable for a range of industries requiring high-performance connectivity solutions.