MIL-DTL-38999 Series II connectors offer robust performance in harsh environments, featuring up to 128 contacts sealed for protection. With an operating temperature range from -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, they offer versatility in installation. The connectors come in aluminum shells with plating options including gold, electroless nickel, and cadmium finishes. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity. Meeting military specification MIL-DTL-38999 II, these circular receptacles guarantee durability and performance in critical operations.