The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. The connectors come in aluminum shells with plating options including gold, electroless nickel, and cadmium finishes. With RoHS compliant alternatives, they ensure environmental responsibility. Suitable for military and industrial use, these connectors provide reliable performance with their durable construction and 500 cycle mating life.