MIL-DTL-38999 Series II connectors are designed for rugged 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 are ideal for harsh conditions. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Featuring aluminum shells with options for plating such as gold and electroless nickel, they ensure reliable conductivity. Compliant with military specification MIL-DTL-38999 II, these connectors are suitable for demanding applications that require durability and performance.