The MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert and are designed for harsh environments with an operating temperature range of -65 °C to 200 °C. These connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with different plating options, they meet RoHS standards and offer reliable connectivity with M39029 rear release crimp contacts. Perfect for military and industrial applications, these connectors ensure durability and performance in demanding conditions.