MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts, boasting rugged environmental sealing and a wide operating temperature range from -65 °C to 200 °C. This connector family features front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, catering to diverse installation needs. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts in various sizes, including coax and twinax options. Constructed with durable high-strength aluminum shells, they come in a range of plating options such as cadmium and nickel, meeting specific application requirements. With RoHS-certified finishes, these connectors ensure reliable performance in harsh environments, making them ideal for military and industrial applications.