The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65 °C and 200 °C, they offer reliability in extreme conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse applications. With options for straight, RFI grounding, and standard plugs, along with a range of shell sizes and insert arrangements, these connectors provide flexibility. Constructed with aluminum shells and offering plating choices like electroless nickel and cadmium finishes, they ensure durability and performance. RoHS compliant options are also available, meeting environmental standards. Suitable for military and industrial use, these connectors guarantee secure and efficient electrical connections.