MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they ensure secure installations. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offering multiple plating options including cadmium-free finishes, they meet stringent military specifications for durability and performance in demanding applications. With gold contact plating, removable crimp contacts, and bayonet coupling, these connectors ensure efficient signal transmission in critical operations. The MIL-DTL-38999 Series II connectors are the ideal choice for aerospace, defense, and other rugged electronic systems where reliability is paramount.