The MIL-DTL-38999 Series II connectors are designed for rugged environments, with up to 128 contacts housed in an insert for reliable connectivity. These connectors are fully sealed against environmental elements, operating smoothly in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. Built with aluminum shells and a range of plating options including cadmium-free finishes, they ensure durability and compliance with RoHS standards. Suitable for military and industrial applications, the MIL-DTL-38999 Series II connectors guarantee high performance and longevity in demanding conditions.