MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65 °C and 200 °C, these connectors offer versatility in extreme conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. With options for straight, RFI grounding, and standard plugs, including a 90-degree cable clamp, customization is key. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Crafted from aluminum, these connectors come in different plating finishes like cadmium and nickel, with RoHS compliant options. Perfect for military and industrial applications, they provide reliable performance with a 500-cycle mating life.