MIL-DTL-38999 Series II connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With an extensive operating temperature range of -65 °C to 200 °C, these connectors are reliable in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Designed for durability, they come in aluminum shells with options for different plating finishes, including RoHS compliant alternatives. The connectors utilize M39029 rear release crimp contacts and are offered in 9 shell sizes and 52 insert arrangements, ensuring compatibility with a range of applications. With a contact gender of female, contact plating in gold, and a contact size of 22, they provide efficient electrical conductivity. Meeting MIL-DTL-38999 II specifications, these connectors guarantee performance and longevity, making them ideal for military, aerospace, and other demanding environments.