MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts housed in an insert. These connectors are environmentally sealed, capable of operating in temperatures ranging from -65 °C to 200 °C. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Featuring aluminum shells with plating options like electroless nickel and cadmium finishes, they ensure durability and reliability. With a contact configuration of 12 pins, utilizing removable crimp contacts, they provide secure connections. Meeting military specification MIL-DTL-38999 II, these circular plugs are ideal for applications requiring high performance in demanding conditions.