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USB Devices Disabled

If a Mac accessory needs more power or is using more power than your Mac is providing, you may see the message "USB Devices Disabled"...

USB Devices Disabled


This could mean that a device connected to the USB-A , USB-C , or Thunderbolt (USB-C) port on your Mac isn't getting enough power:

  • A message says that the device needs more power, the operation can't be completed, or USB devices are disabled until you unplug the device using too much power.
  • The device doesn't turn on or isn't recognized by your Mac.



  1. Connect your AC mains adaptor to the mac
  2. Remove all other USB devices, including hubs and docking stations. 


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