MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert for robust connectivity. With an operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating different contact sizes for specific needs. Constructed with aluminum shells and offered in plating options like gold and electroless nickel, they ensure durability and reliable performance. Meeting military specification MIL-DTL-38999 II, these connectors guarantee quality and compliance for critical applications.