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 options, including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in connectivity solutions. The connectors, compliant with military specification MIL-DTL-38999 II, come in aluminum shells with multiple plating options, ensuring durability and reliability in demanding applications. With gold-plated removable crimp contacts and bayonet coupling, they provide secure and efficient electrical connections. Suitable for military and aerospace use, these connectors guarantee high performance with a service rating of I and a mating life of 500 cycles.