MIL-DTL-38999 Series II connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts within an environmentally sealed insert. Designed for durability, they can operate in temperatures ranging from -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure secure installations. With a selection of plating options such as gold, electroless nickel, and cadmium-free finishes, they meet diverse application requirements. Constructed with aluminum shells and utilizing M39029 rear release crimp contacts, they guarantee efficient signal transmission. RoHS compliant and engineered for 500 mating cycles, these connectors are ideal for demanding military and industrial settings.