The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering reliable performance in extreme conditions. With a wide operating temperature range from -65°C to 200°C, these connectors are ideal for demanding applications. Available in various mounting options such as front wall mount, rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. Constructed with aluminum shells and offering multiple plating options including gold, electroless nickel, and cadmium finishes, they ensure durability and corrosion resistance. The connectors use M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, guaranteeing secure connections. With RoHS compliant options available, these MIL-DTL-38999 Series II connectors are suitable for military, aerospace, and industrial applications where reliability is paramount.