The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in a sealed insert. With a wide operating temperature range of -65 °C to 200 °C, they provide reliable performance in extreme conditions. Available in various mounting options like front and rear wall mount, jam nut, and box mount receptacles, these connectors feature bayonet coupling for secure connections. Their aluminum shells come with plating options including cadmium and nickel, meeting RoHS compliance standards. Utilizing M39029 crimp contacts, they ensure efficient signal transmission. Suitable for military and industrial applications, these connectors are essential for maintaining connectivity in rugged settings.