MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, providing robust connectivity in harsh environments. With an operating temperature range of -65°C to 200°C, they are well-suited for demanding applications. Available in various mounting styles such as jam nut, front and rear wall mount, and box mount receptacles, these connectors offer versatility in installation. The plugs come in straight, RFI grounding, and standard configurations, with options for cable clamp orientation. They utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, ensuring reliable connections. Constructed with aluminum shells and offering multiple plating options including cadmium-free finishes, these connectors meet rigorous military specifications. With features like gold contact plating, bayonet coupling, and environmental resistance, they provide high performance and durability. With a service rating of I and a service class of E, they are designed for critical applications where reliability is paramount.