MIL-DTL-38999 Series II connectors feature up to 128 contacts, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in connectivity solutions. With 52 insert arrangements and M39029 rear release crimp contacts in multiple sizes, these connectors ensure reliable performance. Constructed with aluminum shells and offering options for plating finishes such as gold, electroless nickel, and cadmium-free coatings, they meet stringent military specifications for durability. Suitable for applications requiring environmental resistance, these connectors are ideal for use in demanding settings. (Word count: 107)