The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert for reliable connectivity. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for rugged applications. Available in various mounting options such as front wall mount, rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in aluminum shells with plating options including cadmium and nickel for durability. Utilizing M39029 crimp contacts, they ensure secure connections. These connectors meet military specifications and are RoHS compliant, making them suitable for a range of industries requiring high-performance and environmentally sealed connectivity solutions.