The MIL-DTL-38999 Series II connectors are designed to meet the demands of harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various mount types including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. Constructed with aluminum shells and offering multiple plating options, including RoHS certified finishes, these connectors ensure durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connections. The straight plug design with EMI shielding, bayonet coupling, and gold contact plating further enhances their performance. Ideal for military and industrial use, these connectors are suitable for environments requiring high reliability and ruggedness.