MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts and a wide operating temperature range of -65 °C to 200 °C. These connectors, with various mounting options including wall mount and jam nut, are ideal for harsh conditions. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering plating options such as gold and electroless nickel, they ensure reliable performance. With RoHS compliant finishes, these connectors are suitable for diverse applications requiring durability and environmental resistance.