MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. These environmentally sealed connectors feature a wide operating temperature range from -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. The connectors come in aluminum shells with options for plating such as cadmium and nickel. Utilizing M39029 rear release crimp contacts, they ensure reliable connections. With RoHS compliant finishes, these connectors are suitable for diverse industries where durability and performance are paramount.