MIL-DTL-38999 Series I connectors offer a high-performance solution for harsh environments, featuring up to 128 contacts housed in a rugged insert. Designed for durability, they are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various mounting options including front wall, rear wall, and jam nut receptacles, these connectors ensure secure connectivity. With 52 insert arrangements and M39029 rear release crimp contacts, they provide flexibility in design. The connectors come in sturdy aluminum shells with a choice of plating options, including cadmium-free finishes for RoHS compliance. Ideal for military and industrial applications, they guarantee reliable performance with their gold-plated contacts and conductive properties. The MIL-DTL-38999 Series I connectors are a versatile and dependable choice for critical electronic systems.