MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they ensure versatile installation. These connectors, compliant with military specification MIL-DTL-38999 II, are built for durability, with an operating temperature range of -65 °C to 200 °C. Available in 9 shell sizes and 52 insert arrangements, they accommodate M39029 rear release crimp contacts for secure connections. The aluminum shells come in different plating options, including cadmium-free finishes, ensuring reliability while meeting RoHS compliance. Suitable for a wide range of applications, these connectors provide excellent performance in demanding environments.