MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they feature various mounting options like front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable connections. With a wide range of plating options including gold, electroless nickel, and cadmium finishes, they ensure durability and conductivity. Operating between -65°C and 200°C, these connectors are ideal for military and industrial applications requiring rugged, high-temperature performance.