The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliability in extreme conditions. Available in various mounting styles, including front wall, rear wall, and jam nut receptacles, these connectors are versatile. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Constructed with high-strength aluminum shells and offered in multiple plating options, such as gold and electroless nickel, they meet diverse application needs. RoHS compliant finishes are also available. With a focus on performance and durability, these connectors are ideal for military and industrial use.