MIL-DTL-38999 Series II connectors are engineered for rugged environments, featuring up to 128 contacts within a sealed insert. Operating reliably in temperatures ranging from -65 °C to 200 °C, these connectors offer versatility with various mounting options like front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize durable M39029 rear release crimp contacts. Crafted from aluminum with plating options including cadmium-free finishes, these connectors ensure reliable performance in demanding applications, meeting MIL-DTL-38999 II military specifications.