The MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure secure installations. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. Crafted from durable aluminum with multiple plating options, including cadmium-free finishes, these connectors meet stringent military specifications for performance and durability. Ideal for applications requiring high reliability in extreme conditions.