The MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments. With up to 128 contacts and environmental sealing, they ensure reliable operation in extreme conditions ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors feature front wall mount, rear wall mount, and jam nut receptacles, catering to diverse installation needs. Utilizing M39029 rear release crimp contacts in multiple sizes, including coax and twinax, they guarantee secure and efficient connections. Constructed with high-strength aluminum shells and offering a selection of plating options, such as cadmium-free finishes, these connectors prioritize durability and compliance. With a bayonet coupling mechanism and gold contact plating, they ensure optimal performance with 500 mating cycles. Suitable for military and industrial applications, these MIL-DTL-38999 I connectors are a reliable choice for critical operations.