MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with operating temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors offer front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Constructed with high-strength aluminum shells, they come in different plating options, including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable performance and durability, meeting military specification MIL-DTL-38999 I standards. Suitable for demanding applications, they provide secure electrical connections with gold-plated contacts and a bayonet mating type. RoHS compliant options are also available, making them ideal for a wide range of industrial and military uses.