The MIL-DTL-38999 Series II connectors offer rugged performance 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 use M39029 rear release crimp contacts for secure connections. With a wide range of plating options, including cadmium-free finishes, these connectors ensure reliable conductivity in temperatures ranging from -65°C to 200°C. Ideal for military applications, they meet stringent MIL-DTL-38999 II specifications for durability and performance.