MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts housed in an environmentally sealed insert. Operating between -65 °C and 200 °C, these connectors offer durability and reliability. Available in various mounting styles, including wall mount and box mount, they feature RFI grounding options and straight or 90-degree cable clamps for flexibility. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure secure connections. Crafted from aluminum with plating options such as gold, electroless nickel, and cadmium-free finishes, these connectors meet stringent military specifications for performance and longevity.