MIL-DTL-38999 Series II connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65°C to 200°C, these connectors are versatile and durable. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The aluminum shells come in different plating options such as cadmium-free finishes, ensuring reliability and compliance. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure connections. Suitable for military and industrial applications, they provide excellent conductivity and ingress protection, with a service rating of I and mating life of 500 cycles. RoHS compliant, they meet environmental standards while delivering superior performance.