MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts, ideal for harsh environments. Featuring front wall mount, rear wall mount, and jam nut receptacles, they ensure secure installations. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for demanding applications. Made with high-strength aluminum shells and available in various plating options such as gold, electroless nickel, and black anodized aluminum, they provide durability and reliability. RoHS compliant finishes are also offered. Utilizing M39029 rear release crimp contacts, these connectors guarantee efficient signal transmission. The Series I connectors are designed for military specifications and come in 9 shell sizes and 52 insert arrangements, accommodating various requirements. With their conductivity, environment resistance, and 500-cycle contact mating life, they are the perfect choice for critical operations.