The MIL-DTL-38999 Series II connectors feature up to 128 contacts housed in an insert, offering robust environmental sealing for reliable performance in harsh conditions. With an operating temperature range spanning from -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting configurations such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors come in aluminum shells with options for plating finishes including cadmium-free coatings, ensuring compliance with environmental regulations. Utilizing M39029 rear release crimp contacts, they provide secure and efficient connectivity. Ideal for military and aerospace use, these connectors are designed for durability, with a service rating of Class E and a mating life of 500 cycles. With their high-quality construction and performance capabilities, they are a reliable choice for demanding environments.