MIL-DTL-38999 Series I connectors boast exceptional durability and versatility, featuring up to 128 contacts within a rugged insert. Designed for harsh environments, these connectors offer reliable performance in temperatures ranging from -65 °C to 200 °C. With options for front and rear wall mounting, as well as jam nut receptacles, they suit various installation needs. Utilizing M39029 rear release crimp contacts in multiple sizes, including coax and twinax, they ensure secure connections. Engineered with high-strength aluminum shells and available in different plating options, such as electroless nickel and cadmium-free finishes, these connectors prioritize longevity and environmental compliance. The bayonet coupling mechanism and N keyway polarization provide ease of use and secure mating. Ideal for military and industrial applications requiring rugged and dependable connectivity, MIL-DTL-38999 Series I connectors deliver unparalleled performance in demanding conditions.