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 environmentally sealed for reliable performance. Available in various mounting options such as front wall mount, rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. The connectors come in aluminum shells with plating options like electroless nickel and cadmium finishes. With M39029 rear release crimp contacts, they ensure secure connections. Meeting military specification MIL-DTL-38999 II, these connectors are ideal for applications requiring durability and high performance in challenging conditions.