The MIL-DTL-38999 Series II connectors, designed for harsh environments, offer high-performance connectivity with up to 128 contacts in an insert. These environmentally sealed connectors feature a wide operating temperature range from -65 °C to 200 °C, ensuring reliable functionality in extreme conditions. Available in various mounting options such as front wall, rear wall, jam nut, and box mount receptacles, they provide flexibility for diverse applications. With 52 insert arrangements and M39029 rear release crimp contacts, they offer versatility in contact configurations. Crafted from durable aluminum, these connectors come in different plating options, including cadmium-free finishes, meeting RoHS compliance. Suitable for military and industrial use, they guarantee secure and efficient electrical connections.