MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts in an insert and environmental sealing. Operating between -65 °C and 200 °C, they offer durability in extreme conditions. Featuring various receptacle styles such as front and rear wall mount, jam nut, and box mount, they provide versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable connections. With aluminum shells and plating options including cadmium-free finishes, they meet RoHS compliance standards. Perfect for military and industrial applications, these connectors ensure secure and high-performance electrical connections.