The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, they are ideal for military and industrial applications. With 52 insert arrangements and M39029 rear release crimp contacts, they offer versatility and reliability. Constructed with high-strength aluminum shells and a choice of plating options, including RoHS compliant finishes, these connectors ensure durability and performance in demanding conditions.