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 from -65 °C to 200 °C. Available in various mounting styles like front wall, rear wall, jam nut, and box mount, these connectors ensure secure connections. With options for straight, RFI grounding, and standard plugs, they offer versatility in cable installations. Utilizing M39029 rear release crimp contacts, these connectors come in aluminum shells with plating choices including cadmium-free finishes. Meeting military specification MIL-DTL-38999 II, they guarantee reliability with gold-plated contacts and a maximum operating temperature of 175 °C. Suitable for diverse applications, these connectors provide durability with 500 mating cycles and environmental resistance, making them ideal for demanding industrial and military environments.