MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in a sealed insert, designed for harsh environments. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they ensure reliable connections in diverse applications. Available in 9 shell sizes with 52 insert arrangements, these connectors use rear release crimp contacts in multiple sizes. Constructed with aluminum shells and plated with options like gold and electroless nickel, they guarantee durability and conductivity. With an operating temperature range from -65 °C to 200 °C, they are suitable for demanding environments. RoHS compliant finishes are also available, making them environmentally friendly. Perfect for military and industrial use, these connectors offer exceptional performance in rugged conditions.