The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts within an insert. These connectors are environmentally sealed and can withstand temperatures ranging from -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer flexibility in applications. Constructed with high strength aluminum shells and offered with multiple plating options, including RoHS certified finishes, these connectors ensure durability and reliability. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, all equipped with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they provide secure connections. Suitable for military and industrial use, these connectors are ideal for applications requiring high performance in challenging conditions.