MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts housed in a durable insert. Designed for harsh environments, these connectors feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offering multiple plating options, such as gold and electroless nickel, these connectors ensure long-lasting durability. With an operating temperature range of -65°C to 200°C and RoHS-certified finishes, they provide reliable performance in a wide range of applications, making them ideal for military and industrial use.