MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. These connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles, with straight or 90-degree cable clamp plugs available. Compliant with military specification MIL-DTL-38999 II, they offer reliability with M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering multiple plating options including cadmium-free finishes, they ensure durability and performance in demanding applications. Ideal for back panel wall mounting, these connectors, with gold-plated contacts, are suitable for environments requiring high conductivity and resistance to environmental factors. With a service rating of II and ingress protection, they meet stringent military standards for reliability and performance.