MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts, sealed for environmental durability. Operating seamlessly in extreme temperatures ranging from -65 °C to 200 °C, these connectors are designed for reliability in harsh conditions. Featuring various mounting options including front wall, rear wall, and jam nut receptacles, they cater to diverse installation needs. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax configurations. Constructed with robust aluminum shells and available in different plating options such as electroless nickel and cadmium finishes, they meet stringent military specifications. With RoHS certified cadmium-free variants, they guarantee compliance with environmental standards. Ideal for demanding applications, these connectors provide efficient and durable solutions for critical connectivity requirements.