The MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering a high-density solution for demanding environments. Designed for harsh conditions, they are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. With various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offered in multiple plating options, including RoHS compliant finishes, these connectors ensure durability and performance. Perfect for military and industrial applications, they meet MIL-DTL-38999 II specifications for quality and reliability.