D38999 connectors are designed for harsh environments with rugged, capable connectors for Signal, Power, Control, and Optical Needs. AMPMIL helps to meet the need for reliable performance with rugged MIL-DTL-389999 connectors having 500 mating cycles, operating temperatures to 200°C, corrosion-resistant and corrosion-proof connector versions, scoop-proof designs, and excellent electromagnetic interference (EMI) control. Lighter, smaller connectors can make a big difference in terms of contributing to greater performance: longer flight times, greater payload capability, and increased efficiency.