MIL-DTL-38999 Series II connectors offer robust performance in harsh environments with up to 128 contacts housed in an insert. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they ensure secure connections. These connectors, designed for military applications, boast a wide operating temperature range from -65 °C to 200 °C. With a choice of aluminum shells and plating options such as gold, electroless nickel, and cadmium finishes, they provide reliable conductivity. Meeting stringent MIL-DTL-38999 II specifications, these circular connectors are ideal for demanding aerospace and defense systems.