MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in a single insert. These connectors are environmentally sealed, with a wide operating temperature range from -65 °C to 200 °C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. Available in aluminum shells with multiple plating options such as cadmium and nickel, they ensure durability and reliability. Compliant with military specification MIL-DTL-38999 II, these connectors are ideal for demanding situations where rugged connectivity is essential.