Cisco 48 port switch in the middle of the rack with cable management to the left and two 30 amp 208v single phase PDUs to the right. The PDUs are switched so we have them networked to be able to reboot any PSU from anywhere in the world. All network cabling is labeled and corresponds to the ant it goes to.
Place PSU in front of AntMiner. Hot air from miner heats up PSU reducing its effectiveness and shortening its life.