The MIL-DTL-38999 Series I connectors offer robust performance in harsh environments with up to 128 contacts securely housed in an insert. These connectors, featuring front wall mount, rear wall mount, and jam nut receptacles, are designed for durability, with an operating temperature range spanning from -65 °C to 200 °C. Compliant with military specifications, they ensure reliable connectivity in demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts in multiple sizes. Crafted from high-strength aluminum, they come in a range of plating options, including cadmium-free finishes for RoHS compliance. With their bayonet coupling and environment-resistant design, these connectors are ideal for critical military and industrial systems.