Note: This guide is for the 21.5-inch and 27-inch iMac. If you’re not sure which iMac you have or want to find information about other models, see the Apple Support article AC power cord: Pass the power cord through the hole in the stand, plug it into the power port on the back of your iMac, then plug the cord into a power outlet.Power button: Press to turn your iMac on. (Choose Apple menu Siri on your Mac.
AC power cord: Pass the power cord through the hole in the stand, plug it into the power port on the back of your iMac, then plug the cord into a power outlet.
Power button: Press to turn your iMac on. (Choose Apple menu Siri on your Mac