MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with a wide operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. These connectors utilize M39029 rear release crimp contacts, with options for RoHS-certified finishes like cadmium-free platings. Constructed with high-strength aluminum shells, they ensure durability and reliability in demanding applications. Perfect for military and aerospace use, these connectors are ideal for secure electrical connections in challenging environments.