The MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert and are designed for harsh environments, with an operating temperature range of -65 °C to 200 °C. Available in various mount types including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With options for straight, RFI grounding, and standard plugs, along with multiple shell sizes and insert arrangements, these connectors provide flexibility for different applications. Constructed with aluminum shells and offering various plating options, such as electroless nickel and cadmium finishes, they ensure durability and reliability. Suitable for military and industrial use, these connectors meet stringent MIL-DTL-38999 II specifications, offering high performance in demanding environments.