MIL-DTL-38999 Series I connectors offer high-performance connectivity for demanding environments. With up to 128 contacts in an insert, these circular connectors provide reliable signal transmission. Featuring front wall mount, rear wall mount, and jam nut receptacles, they are versatile in application. RFI grounding plugs ensure optimal signal integrity. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offering various plating options, including cadmium-free finishes, they are durable and environmentally resilient. Operating within a wide temperature range from -65 °C to 200 °C, these connectors are suitable for rugged conditions. With gold contact plating and a mating type of bayonet, they ensure efficient signal transfer. Designed for military specifications, they meet stringent quality standards for performance and reliability.