MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts in an insert. These connectors, with an operating temperature range of -65 °C to 200 °C, are designed for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS compliant finishes, these connectors ensure durability and performance. Featuring front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs, they provide versatile solutions for military and industrial needs.