MIL-DTL-38999 Series II connectors feature up to 128 contacts, offering reliable connectivity in harsh environments. With an operating temperature range from -65 °C to 200 °C, these environmentally sealed connectors are designed for durability. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells and offering multiple plating options, such as electroless nickel and cadmium finishes, they ensure optimal performance. With features like bayonet coupling and extended grommet box mounting, these connectors meet MIL-DTL-38999 II military specifications, making them suitable for demanding service environments.