The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, these connectors meet stringent military specifications. Constructed with aluminum shells and offering multiple plating options, they ensure durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they provide secure connections for critical applications. Perfect for aerospace, defense, and industrial settings, these connectors are essential for ensuring reliable communication and power distribution in challenging environments.