MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations including front and rear wall mount, and jam nut receptacles, they ensure reliable connectivity. These connectors utilize M39029 rear release crimp contacts and come in 9 shell sizes with 52 insert arrangements. The high-strength aluminum shells offer durability, with plating options such as cadmium and nickel available. RoHS certified finishes are also offered, catering to diverse application requirements.