MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatile connectivity solutions. With 52 insert arrangements and M39029 rear release crimp contacts in multiple sizes, these connectors ensure reliable performance. Constructed with aluminum shells and a choice of plating options, they meet stringent military specifications. RoHS certified finishes are available, making them suitable for diverse applications requiring durability and high performance.