The power distribution unit is a socket for the cabinet. PDU is designed to provide power distribution for electrical equipment installed in the cabinet. It has a variety of series of specifications with different functions, installation methods and different plug-in combinations, and can provide suitable rack type power distribution solutions for different power environments. The application of PDU can make the power distribution in the cabinet more orderly, reliable, safe, professional and beautiful, and make the maintenance of the power supply in the cabinet more convenient and reliable.