The 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 options such as 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 secure and reliable connections. Crafted from aluminum with multiple plating options, including cadmium-free finishes, they meet stringent military specifications for durability and performance in demanding applications.