The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, they provide reliable performance in extreme conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in deployment. Featuring aluminum shells with plating options such as electroless nickel and cadmium finishes, they meet stringent military specifications for durability. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Suitable for demanding applications, these connectors are ideal for aerospace, defense, and industrial use.