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. Offering front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, they come in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts. Their high strength aluminum shells are available in various plating options, including cadmium-free finishes, meeting RoHS certification. Suitable for military and industrial applications, these connectors ensure reliable electrical connectivity in demanding conditions.