MIL-DTL-38999 Series I connectors offer rugged reliability for demanding environments, featuring up to 128 contacts in an insert. With environmental sealing and an operating temperature range from -65 °C to 200 °C, they ensure consistent performance. Available in various shell sizes and insert arrangements, these connectors come in aluminum shells with diverse plating options, including cadmium-free finishes. Designed for military specifications, they include front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. The Series I connectors are ideal for applications requiring durability, conductivity, and environmental resistance.