The HD34-24-21PE is an HD30 series receptacle connector designed for environmentally sealed applications in industrial and commercial transportation systems. It features a 24 shell housing with 21 cavities accommodating 17 size 16 contacts and 4 size 12 contacts, providing flexible pin configuration for diverse wiring requirements. The connector is equipped with an E seal (environmental seal) for protection against moisture and contaminants, ensuring reliable performance in harsh operating environments. This receptacle configuration is commonly used in automotive, heavy equipment, and industrial control systems where robust, sealed electrical connections are essential for system reliability and longevity.