MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within a sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors offer durability in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they ensure versatile installation. The connectors come in aluminum shells with plating options including cadmium and nickel, meeting RoHS compliance standards. Utilizing M39029 rear release crimp contacts, they provide reliable connectivity with gold-plated sockets. Suitable for military and industrial applications, these connectors guarantee high performance with 500 mating cycles and environmental resistance.