The MIL-DTL-38999 Series II connectors are built for durability in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. The plugs come in straight, RFI grounding, and standard options with a 90-degree cable clamp, offering versatility in connectivity. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and efficient connections. Constructed with aluminum shells and offering a range of plating options, including cadmium-free finishes, they meet stringent military specifications. Suitable for aerospace, defense, and industrial applications, these connectors deliver high performance and durability in demanding environments.