The MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts housed in a sealed insert. Designed for harsh environments, they feature front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells, they come in different plating options, including cadmium-free finishes. These connectors, compliant with military specifications, ensure reliable performance in challenging conditions.