MIL-DTL-38999 Series II connectors offer reliable performance in harsh environments with up to 128 contacts, environmentally sealed for durability. Operating between -65°C and 200°C, these connectors come in various configurations including front and rear wall mounts, jam nuts, and box mounts. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Crafted from aluminum with plating options like cadmium and nickel, they ensure optimal conductivity. With RoHS certified finishes, these connectors are ideal for military and industrial applications, meeting stringent performance standards.