MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert for versatile connectivity. These environmentally sealed connectors operate reliably in temperatures ranging from -65 °C to 200 °C. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility for different applications. With options for straight, RFI grounding, and 90-degree cable clamp plugs, these connectors accommodate diverse installation needs. Constructed with aluminum shells and offering multiple plating options such as cadmium and electroless nickel, they ensure durability and performance in demanding conditions. Compliant with RoHS regulations, these connectors are suitable for military and industrial use where reliability is paramount.