MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles such as 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, featuring 90-degree cable clamps, these connectors come in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, they ensure secure connections in military and industrial settings. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they guarantee durability and reliability. Suitable for demanding environments, these connectors are essential for maintaining connectivity in challenging conditions.