MIL-DTL-38999 Series II connectors feature up to 128 contacts housed in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure reliable connectivity in demanding applications. Made of aluminum, they are offered with plating options including electroless nickel and cadmium finishes, catering to different environmental requirements. RoHS certified for environmental compliance, they are ideal for military and industrial use.