MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring front and rear wall mount options, as well as jam nut receptacles, they ensure reliable performance in various applications. These connectors, compliant with military specifications, boast a wide operating temperature range from -65 °C to 200 °C. With 52 insert arrangements available, they accommodate M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax variants. Constructed with high-strength aluminum shells and offered in different plating options, such as electroless nickel and cadmium finishes, they meet diverse industrial needs. Additionally, RoHS certified cadmium-free options are available, ensuring environmental compliance. Perfect for demanding environments, these connectors guarantee secure and efficient electrical connections.