MIL-DTL-38999 Series II connectors feature up to 128 contacts and are designed for harsh environments, with an operating temperature range from -65 °C to 200 °C. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in installation. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure reliable connectivity. Constructed with aluminum shells and plated with options such as electroless nickel, they provide durability and protection. Meeting military specifications, these connectors are ideal for applications requiring rugged performance in demanding conditions.