MIL-DTL-38999 Series I connectors boast up to 128 contacts in an insert, ensuring robust connectivity in harsh environments. With a wide operating temperature range of -65 °C to 200 °C, these connectors are designed for reliability. Featuring various mounting options like front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating diverse needs. Utilizing M39029 rear release crimp contacts in different sizes, including coax and twinax, they ensure secure connections. Constructed with high-strength aluminum shells and available in various plating options like cadmium and nickel, these connectors prioritize durability. Offering RoHS certified cadmium-free finishes, they align with environmental standards, making them a dependable choice for critical applications.