The MIL-DTL-38999 Series I connectors are designed for harsh environments, with up to 128 contacts housed in an insert. Featuring front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, they offer versatility in installation. These connectors meet military specifications and have an operating temperature range from -65°C to 200°C. Constructed with high-strength aluminum shells and available in various plating options, including RoHS certified finishes, they ensure reliable performance. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements, accommodating different needs. Suitable for applications requiring durability and environmental sealing, they are ideal for critical connectivity in challenging conditions.