MIL-DTL-38999 Series II connectors offer reliable performance in harsh environments with up to 128 contacts sealed for protection. Operating between -65 °C and 200 °C, they come in various configurations like front and rear wall mount, jam nut, and box mount receptacles. Available with straight, RFI grounding, and standard plugs, they feature 52 insert arrangements with M39029 rear release crimp contacts. Constructed with aluminum shells and plating options such as electroless nickel, they ensure durability and compliance with RoHS regulations. Suitable for military and industrial applications, these connectors guarantee secure and efficient electrical connections.