MIL-DTL-38999 Series II connectors, part of the 38999 Series II, are designed for harsh environments with up to 128 contacts in an insert. These connectors are environmentally sealed, ensuring reliable performance in extreme conditions with an operating temperature range of -65 °C to 200 °C. Featuring various receptacle types such as front and rear wall mount, jam nut, and box mount, they offer versatility in installation. Available in aluminum shells with multiple plating options including cadmium-free finishes, these connectors meet stringent RoHS compliance standards. Utilizing M39029 rear release crimp contacts, they guarantee secure connections with sizes ranging from 22D to 12. Perfect for military and industrial applications, these connectors provide durable and efficient electrical connectivity.