MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. These connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various mounting styles such as front wall mount, rear wall mount, jam nut, rear box mount, and front box mount (long grommet) receptacles, they cater to diverse connectivity needs. With options for straight, RFI grounding, and standard plugs featuring a 90-degree cable clamp, these connectors provide flexibility in installation. Utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, they ensure reliable connections. Constructed with aluminum shells and offering plating choices like light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, these connectors meet stringent quality standards. Their RoHS certified cadmium-free finishes further enhance their appeal, making them ideal for demanding applications requiring durability and performance in military and industrial settings.