MIL-DTL-38999 Series I connectors, designed for harsh environments, feature up to 128 contacts in an insert for versatile connectivity. With options like front and rear wall mount and jam nut receptacles, they offer flexibility in installation. These connectors, operating smoothly between -65 °C and 200 °C, are environmentally sealed for reliable performance. Utilizing M39029 rear release crimp contacts in various sizes, including coax and twinax, they ensure secure connections. Available in 9 shell sizes and multiple insert arrangements, they cater to diverse needs. Crafted from high-strength aluminum with various plating options, such as gold and electroless nickel, they guarantee durability. Meeting MIL-DTL-38999 I specifications, they are ideal for demanding applications requiring rugged and dependable connectors.