Rack with a power distribution unit

A rack is adapted for storing a plurality of servers, and includes a rack body and a power distribution unit. The rack body includes a top portion, a bottom portion and a plurality of supporting rods. The supporting rods connect vertically the top portion to the bottom portion. One of the supporting rods is formed with a receiving groove. The servers are placed among the supporting rods. The power distribution unit includes a plurality of socket units retained in the receiving groove.