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 from -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various mounting styles such as front wall mount, rear wall mount, and jam nut receptacles, they provide flexibility for different applications. The aluminum shells come with multiple plating options, including cadmium-free finishes for RoHS compliance. Using M39029 rear release crimp contacts, these connectors ensure secure and efficient connections. Ideal for military and aerospace applications, they are built to withstand rugged environments with their durable construction and high mating cycle rating.