Apple Power Supplies: Changing voltage settings
Summary
Learn about the power supplies in various Apple products and whether they can switch automatically to voltages in other countries.
Some Apple computers have an auto-switching power supply which monitors the incoming voltage and automatically switches itself accordingly. Other Apple computers have a power supply that must be manually switched for various incoming voltages. In this case, the change is made by moving the voltage selector switch which is accessible from outside the computer's case. Still other Apple computers have a power supply that is rated only for the country in which it is sold and it cannot switch to other voltages.
The table below shows what type of power supply is in various recent Macintosh models. Some models can use the World Travel Adapter Kit. If your computer cannot use the World Travel Adapter Kit and you need a power adapter or power cord with an appropriate plug, contact an Apple-Authorized Service Provider (AASP) in the region.
Products Affected
iPod, eMac, iMac, Mac mini, Power Mac, PowerBook, AirPort, World Travel Adapter Kit
Model
Power Supply type
Power Mac G5
Power Mac G5
Auto-Switching
Power Mac G4
Power Mac G4 (Mirrored Drive Doors 2003)
Auto-Switching
Power Mac G4 (FW 800)
Auto-Switching
Power Mac G4 (Mirrored Drive Doors)
Auto-Switching
Power Mac G4 (QuickSilver 2002)
Auto-Switching
Power Mac G4 (QuickSilver)
Auto-Switching
Power Mac G4 (Digital Audio)
Manual
Power Mac G4 (Gigabit Ethernet)
Manual
Power Mac G4 Cube
Auto-Switching
Power Mac G4 (PCI Graphics)
Manual
Power Mac G4 (AGP Graphics)
Manual
Power Macintosh G3
Power Macintosh G3 (Blue and White)
Manual
Power Macintosh G3 Mini Tower
Manual
Power Macintosh G3 Desktop
Manual
Power Macintosh G3 All-in-one
Auto-Switching
iMac
iMac (Early 2006)
Auto-Switching
iMac G5 (iSight)
Auto-Switching
iMac G5 (Ambient Light Sensor)
Auto-Switching
iMac G5 - all models
Auto-Switching EXCEPT models sold in the US, Canada, and Japan (these models support 100-127 V AC)
iMac G3 and G4 - all models
Auto-Switching
iMac (Mid 2006)
Auto-Switching
iMac (Late 2006)
Auto-Switching
iMac (Mid 2007)
Auto-Switching
iMac (Early 2008)
Auto-Switching
eMac
eMac - all models
Preset - see eMac: About Line Voltage
Mac mini
Mac mini
Auto-Switching
iBook
iBook
Auto-Switching
iBook (FireWire)
Auto-Switching
iBook (Dual USB)
Auto-Switching
iBook (Late 2001) and all later models
Auto-Switching - see Apple Store for adapter
PowerBook G3, PowerBook G4
PowerBook G3 - all models
Auto-Switching
PowerBook G4
Auto-Switching
PowerBook G4 (DVI) and all later models
Auto-Switching - see Apple Store for adapter
iPod
iPod - all models
Auto-Switching - see Apple Store for adapter
AirPort Base Station
AirPort Base Station (Graphite)
Preset - purchase a power adapter from a local Apple-Authorized Service Provider if needed
AirPort Base Station (Dual Ethernet)
Preset - purchase a power adapter from a local Apple-Authorized Service Provider if needed
AirPort Extreme Base Station
Auto-Switching