MIL-DTL-38999 Series II connectors offer robust performance with up to 128 contacts in an environmentally sealed insert. Operating in extreme temperatures ranging from -65 °C to 200 °C, these connectors are designed for harsh environments. Available in various mounting options like front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Featuring straight, RFI grounding, and standard plugs with 90-degree cable clamp options, they ensure secure connections in demanding applications. With a choice of shell sizes, insert arrangements, and contact types, including M39029 rear release crimp contacts, versatility is a key highlight. The connectors, crafted from durable aluminum, come with plating options like electroless nickel and cadmium finishes, with RoHS compliant alternatives for environmental responsibility. Ideal for military and industrial use, these Series II connectors guarantee reliability with a mating life of 500 cycles.