MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts, sealed for environmental protection. Designed for harsh environments, these connectors feature various mounting options such as front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts, ensuring secure connections. With a durable aluminum shell and plating options including electroless nickel and cadmium finishes, they meet stringent military specifications. Operating between -65°C and 200°C, these connectors are ideal for demanding applications where reliability is paramount.