MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. With options for straight, RFI grounding, and standard plugs, as well as multiple shell sizes and insert arrangements, these connectors ensure compatibility and reliability. Constructed with aluminum shells and offering plating options such as electroless nickel and cadmium olive drab, they meet stringent military specifications. Ideal for demanding environments, these connectors provide secure and durable electrical connections, with RoHS compliant finishes available.