MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With an operating temperature range from -65°C to 200°C, these connectors are ideal for demanding applications. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in aluminum shells with options for plating such as electroless nickel and cadmium finishes, meeting RoHS compliance standards. Utilizing M39029 rear release crimp contacts, they ensure reliable connections. Perfect for military and industrial use, these connectors provide durability and performance in extreme conditions.