MIL-DTL-38999 Series II connectors are designed for demanding environments, offering up to 128 contacts in a single insert. These connectors are built to withstand extreme temperatures, with an operating range from -65°C to 200°C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. The connectors are available in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offering plating options such as cadmium and nickel, they ensure durability and performance. With RoHS certified finishes, these connectors meet environmental standards while providing high conductivity and ingress protection. Perfect for military, aerospace, and industrial applications, the MIL-DTL-38999 Series II connectors are a reliable solution for your connectivity needs.