The MIL-DTL-38999 Series II connectors boast a high contact capacity of up to 128, enclosed within an environmentally sealed insert. With an impressive operating range from -65 °C to 200 °C, these connectors are ideal for harsh environments. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. Featuring 52 insert arrangements and utilizing M39029 rear release crimp contacts, these connectors ensure reliable performance. Crafted with aluminum shells and offered in plating options such as gold and electroless nickel, they guarantee durability and conductivity. Meeting military specifications, these connectors are RoHS compliant, making them a reliable choice for demanding applications.