The MIL-DTL-38999 Series II connectors boast robust construction with up to 128 contacts in an insert, ensuring reliable performance in harsh environments. Featuring various mount types such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for demanding military and aerospace settings. The aluminum shells are available in multiple plating options, including RoHS-certified finishes, catering to diverse industry requirements. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connections. Trusted for their durability and conductivity, these connectors are designed for long-lasting performance, with a service rating of I and mating life of 500 cycles. Ideal for box and bulkhead mounting, they provide reliable connectivity in critical systems.