MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, these connectors offer front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. Constructed with high-strength aluminum shells, they come with multiple plating options including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity with a mating life of 500 cycles. Suitable for military and industrial applications, these connectors are ideal for environments requiring resistance to environmental factors.