The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. These environmentally sealed connectors can operate in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. With 52 insert arrangements available, they offer versatility in connectivity. Constructed with aluminum shells and offered with plating options such as electroless nickel and cadmium olive drab, they ensure durability and reliability. Meeting military specification MIL-DTL-38999 II, these connectors are ideal for applications requiring rugged performance.