MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts and environmental sealing for reliable performance. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, as well as straight and 90-degree cable clamp plugs, they offer flexibility in installation. Constructed with aluminum shells and offering a choice of plating options including cadmium-free finishes, they meet stringent military specifications for durability. The use of M39029 rear release crimp contacts ensures secure connections, with options for gold plating for enhanced conductivity. The Series II connectors are ideal for demanding environments where reliability is crucial.