MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, with an impressive operating temperature range of -65 °C to 200 °C. These connectors come in various styles, including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offering a choice of plating options, such as cadmium and nickel finishes, these connectors are ideal for harsh environments. RoHS compliant versions are also available, ensuring compatibility with modern regulations. Suitable for military and industrial applications, these connectors provide high-performance connectivity with durability and reliability in mind.