MIL-DTL-38999 Series II connectors are robustly designed for harsh environments, featuring up to 128 contacts within their inserts. With an impressive operating temperature range from -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in different sizes. Constructed with aluminum shells and offering multiple plating options including cadmium and nickel, they ensure durability and reliable performance. With RoHS compliant finishes available, these connectors are suitable for a wide range of industries, especially those with stringent environmental requirements.