The MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an insert, designed for harsh environments with an operating temperature range from -65 °C to 200 °C. Available in various configurations including front and rear wall mount, as well as jam nut receptacles, they ensure reliable connectivity. Utilizing M39029 rear release crimp contacts, they offer flexibility with 52 insert arrangements and come in 9 shell sizes. Constructed with high-strength aluminum shells and offered in different plating options, including RoHS-certified finishes, these connectors guarantee durability and performance. Suitable for military and industrial applications, they provide secure and efficient electrical connections in demanding settings.