MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in a durable insert. Designed for harsh environments, they feature front wall mount, rear wall mount, and jam nut receptacles, all meeting stringent military specifications. These circular connectors, with a wide range of insert arrangements and rear release crimp contacts, ensure reliable signal transmission. Crafted from high strength aluminum with various plating options, including RoHS compliant finishes, they guarantee long-lasting durability. With an operating temperature range from -65 °C to 200 °C, they are ideal for use in demanding applications where environmental sealing and rugged construction are essential.