MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. Operating between -65 °C and 200 °C, these connectors are environmentally sealed for reliable performance. Available in various mounting styles such as front wall mount, rear wall mount, and jam nut, they offer versatility in installation. With options for straight, RFI grounding, and standard plugs, they cater to different connectivity needs. Constructed with aluminum shells and offering plating choices like cadmium and nickel, they ensure durability and corrosion resistance. Meeting military specifications, these connectors are ideal for demanding applications requiring secure and efficient electrical connections.