The MIL-DTL-38999 Series II connectors boast exceptional durability and performance in harsh environments, with up to 128 contacts housed securely within an insert. Designed for a wide range of applications, these connectors feature various mounting options, including front and rear wall mount, jam nut, and box mount receptacles. Offering reliable connectivity, they utilize M39029 rear release crimp contacts and come in nine shell sizes with 52 insert arrangements. Constructed with aluminum shells and available in different plating options such as electroless nickel and cadmium finishes, they ensure long-lasting functionality. With a temperature range spanning from -65°C to 200°C, these connectors are ideal for demanding military and industrial settings.