MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. The connectors, made of aluminum shells, come with plating options such as cadmium and nickel for enhanced durability. Utilizing M39029 rear release crimp contacts, they ensure secure connections. RoHS compliant finishes are also available. Ideal for military and industrial applications, these connectors provide efficient and dependable electrical connectivity.