MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options, including 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 for reliable performance. With a wide range of plating options, such as gold, electroless nickel, and cadmium finishes, these connectors ensure durability and conductivity. Operating at temperatures ranging from -65 °C to 200 °C, they are suitable for diverse applications requiring rugged and secure electrical connections. RoHS compliant options are also available for environmentally conscious operations.