The MIL-DTL-38999 Series II connectors offer robust connectivity solutions 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, including cadmium-free finishes, these connectors ensure durability and compliance with RoHS regulations. Suitable for military and industrial applications, they guarantee secure and efficient electrical connections in extreme conditions.