MIL-DTL-38999 Series II connectors offer reliable connectivity with up to 128 contacts, designed for harsh environments with an operating range from -65 °C to 200 °C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure versatility in installation. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. With aluminum shells and plating options such as gold, electroless nickel, and cadmium finishes, these connectors meet stringent performance requirements. Ideal for military and aerospace applications, they guarantee durability with RoHS compliant options available.