MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert for reliable electrical connectivity. With a wide operating temperature range of -65°C to 200°C, these connectors are suitable for a variety of applications. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating different contact sizes. Constructed with aluminum shells and offered with plating options including cadmium and nickel, they ensure durability and corrosion resistance. With RoHS compliant finishes available, these connectors meet environmental regulations. Perfect for military and industrial use, they provide secure and efficient electrical connections in demanding environments.