The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. With an operating temperature range of -65 °C to 200 °C, they are ideal for rugged applications. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they ensure secure connections. Featuring aluminum shells with plating options such as electroless nickel and cadmium finishes, they meet RoHS compliance standards. These connectors, equipped with M39029 rear release crimp contacts, guarantee reliable performance with 500 mating cycles. Suitable for military and industrial use, they provide excellent conductivity and environmental resistance for demanding applications.