MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an insert, designed for harsh environments. These circular connectors feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles, with straight and right-angle plugs available. Compliant with military specification MIL-DTL-38999 II, they ensure reliable operation in extreme conditions, with an operating temperature range from -65°C to 200°C. Constructed with durable aluminum shells and offering a range of plating options, including cadmium-free finishes, these connectors are ideal for aerospace, defense, and industrial applications. With gold-plated removable crimp contacts, they provide excellent conductivity and mating reliability, meeting stringent military standards for performance and durability.