MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. With up to 128 contacts in an insert, these connectors offer versatility in connectivity. Operating at temperatures ranging from -65 °C to 200 °C, they ensure reliable performance in extreme conditions. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts, catering to various applications. Constructed with high strength aluminum shells and offering multiple plating options, including RoHS certified finishes, these connectors guarantee durability and compliance. Suitable for military and industrial use, they provide a secure and conductive connection, essential for critical operations.