MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert and offering secure environmental sealing. With a wide operating temperature range of -65 °C to 200 °C, these connectors are reliable in extreme conditions. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The aluminum shells come with different plating options, ensuring durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, these connectors are known for their high performance and reliability, making them ideal for military and industrial applications.