MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert and are designed for harsh environments, with an 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, as well as RFI grounding plugs. Constructed with high strength aluminum shells, these connectors come with a range of plating options, including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity with a mating life of 500 cycles. Perfect for military and industrial applications, these connectors provide environment-resistant solutions for demanding environments.