MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts sealed for protection. Operating between -65 °C and 200 °C, these connectors offer reliability in extreme conditions. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering plating options like electroless nickel and cadmium finishes, they ensure durability and corrosion resistance. With RoHS certified cadmium-free coatings, these connectors meet environmental standards. Suitable for military and industrial applications, they provide a reliable solution for demanding connectivity requirements.