MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. Operating efficiently in temperatures ranging from -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various mount types, including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. With options like straight, RFI grounding, and standard plugs, along with multiple shell sizes and insert arrangements, they provide flexibility in connectivity solutions. Constructed with aluminum shells and offering plating choices such as cadmium and nickel, they ensure durability and corrosion resistance. Compliant with RoHS standards, these connectors guarantee high performance and environmental responsibility.