The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors are versatile for different applications. Constructed with aluminum shells and offering a choice of plating options, they meet stringent military specifications. Utilizing M39029 rear release crimp contacts, they ensure secure connections. With a straight plug design and gold contact plating, they provide durable and efficient connectivity. The Series II connectors are ideal for aerospace, defense, and industrial applications where ruggedness and reliability are paramount.