MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range from -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure versatile installation options. The aluminum shells come with a choice of plating finishes including gold, electroless nickel, and cadmium-free options, meeting RoHS compliance. With M39029 crimp contacts and bayonet coupling, they provide secure and efficient connectivity. Ideal for military and industrial applications, these connectors offer durability, conductivity, and environmental resistance, making them essential for critical operations.