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, with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer versatility in applications. Made with high-strength aluminum shells and offering multiple plating options, including cadmium-free finishes, they ensure durability and reliability. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they provide flexibility in installation. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure connections. Suitable for military and industrial use, they meet MIL-DTL-38999 I specifications, making them ideal for demanding environments.