Connecting your Xbox One power supply unit (PSU) correctly ensures that your console will perform as it was designed. Here’s how to connect the PSU:
Plug the DC cord into the PSU port on the back of your console.
Plug the AC cord into the PSU.
Plug the other end of the AC cord into a wall outlet.
Note We recommend plugging directly into a wall outlet--a power strip or surge protector is not necessary, as your console's power supply has internal protection built in.
Verify that the LED power indicator on the PSU is brightly lit.