MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors are ideal for a wide range of applications. Available in various shell sizes and insert arrangements, they offer flexibility and versatility. Constructed with high-strength aluminum shells and offering a selection of plating options, including cadmium-free finishes, they ensure durability and reliability. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, meeting rigorous military specifications for quality and performance. With their bayonet coupling and removable crimp contacts, they provide secure and efficient connectivity. Suitable for wall mounting applications, these connectors are a dependable choice for demanding environments.