MIL-DTL-38999 Series II connectors offer reliable connectivity in harsh environments with up to 128 contacts and environmental sealing capabilities. Operating between -65°C and 200°C, these connectors come in various configurations such as front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles. Featuring thin walls and restricted lengths, they are designed for space-constrained applications. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering plating options like cadmium and nickel, these connectors ensure durability and performance. With RoHS-certified finishes, they meet environmental standards. Perfect for military and industrial use, MIL-DTL-38999 Series II connectors provide reliable and efficient electrical connections in demanding conditions.