MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert that is environmentally sealed. With an operating temperature range from -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The plugs come in straight, RFI grounding, and standard options, with a 90-degree cable clamp for secure connections. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable performance. Constructed with aluminum shells and offering different plating options such as cadmium and nickel, they meet stringent military specifications for durability. Suitable for RoHS compliant applications, these connectors are ideal for use in demanding environments where rugged performance is essential.