MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front and rear wall mount options, as well as jam nut and box mount receptacles, they offer versatile connectivity solutions. These connectors, compliant with military specifications, are constructed to withstand extreme temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they utilize removable crimp contacts for reliable connections. The aluminum shells come with plating options such as electroless nickel and cadmium finishes, meeting RoHS compliance standards. Suitable for demanding applications, these connectors ensure secure and durable performance in challenging conditions.