Manual Wdbaag0010hch My Book For Mac Power Input



Power adapters for Mac notebooks are available in 29W, 30W, 45W, 60W, 61W, 85W, 87W, and 96W varieties. You should use the appropriate wattage power adapter for your Mac notebook. You can use a compatible higher wattage power adapter without issue, but it won't make your computer charge faster or operate differently. If you use a power adapter that is lower in wattage than the adapter that came with your Mac, it won't provide enough power to your computer.

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Mac notebooks that charge via USB-C come with an Apple USB-C Power Adapter with detachable AC plug (or 'duckhead'), and a USB-C Charge Cable.

Mac notebooks that charge via MagSafe come with an AC adapter with MagSafe connector and detachable AC plug, and an AC cable.

The images below show the style of adapter that comes with each MacBook, MacBook Pro, and MacBook Air. If you're not sure which model Mac you have, use these articles:

USB-C

Apple 29W or 30W USB-C Power Adapter and USB-C Charge Cable

Manual
  • MacBook models introduced in 2015 or later

Apple 30W USB-C Power Adapter and USB-C Charge Cable

  • MacBook Air models introduced in 2018 or later

Apple 61W USB-C Power Adapter and USB-C Charge Cable

  • 13-inch MacBook Pro models introduced in 2016 or later

Apple 87W USB-C Power Adapter and USB-C Charge Cable

  • 15-inch MacBook Pro models introduced in 2016 or later
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Apple 96W USB-C Power Adapter and USB-C Charge Cable

  • 16-inch MacBook Pro models introduced in 2019

Make sure you're using the correct USB-C charge cable

For the best charging experience, you should use the USB-C charge cable that comes with your Mac notebook. If you use a higher wattage USB-C cable, your Mac will still charge normally. USB-C cables rated for 29W or 30W will work with any USB-C power adapter, but won't provide enough power when connected to a power adapter that is more than 61W, such as the 96W USB-C Power Adapter.

You can verify that you're using the correct version of the Apple USB-C Charge Cable with your Mac notebook and its USB-C AC Adapter. The cable's serial number is printed on its external housing, next to the words 'Designed by Apple in California. Assembled in China.'

  • If the first three characters of the serial number are C4M or FL4, the cable is for use with an Apple USB-C Power Adapter up to 61W.
  • If the first three characters of the serial number are DLC, CTC, FTL, or G0J, the cable is for use with an Apple USB-C Power Adapter up to 100W.
  • If the cable says 'Designed by Apple in California. Assembled in China' but has no serial number, you might be eligible for a replacement USB-C charge cable.

MagSafe 2

85W MagSafe power adapter with MagSafe 2 style connector

  • 15-inch MacBook Pro models introduced in 2012 through 2015

60W MagSafe power adapter with MagSafe 2 style connector

  • 13-inch MacBook Pro models introduced in 2012 through 2015

45W MagSafe power adapter with MagSafe 2 style connector

  • MacBook Air models introduced in 2012 through 2017
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About the MagSafe to MagSafe 2 Converter

If you have an older MagSafe adapter, you can use it with newer Mac computers that have MagSafe 2 ports using a MagSafe to MagSafe 2 Converter (shown).

MagSafe 'L' and 'T' shaped adapters

60W MagSafe power adapter with 'T' style connector

  • 13-inch MacBook Pro models introduced in 2009
  • MacBook models introduced in 2006 through mid 2009

60W MagSafe power adapter with 'L' style connector

  • 13-inch MacBook Pro models introduced in 2010 through 2012
  • MacBook models introduced in late 2009 through 2010

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85W MagSafe power adapter with 'T' style connector

  • 15-inch MacBook Pro models introduced in 2006 through 2009
  • 17-inch MacBook Pro models introduced in 2006 through 2009

85W MagSafe power adapter with 'L' style connector

  • 15-inch MacBook Pro models introduced in 2010 through 2012
  • 17-inch MacBook Pro models introduced in 2010 through 2011

45W MagSafe power adapter with 'L' style connector

  • 13-inch MacBook Air models introduced in 2008 through 2011*
  • 11-inch MacBook Air models introduced in 2010 through 2011

* Adapters that shipped with the MacBook Air (Original), MacBook Air (Late 2008), and MacBook Air (Mid 2009) are not recommended for use with MacBook Air (Late 2010) models. When possible, use your computer's original adapter or a newer adapter.

Learn more

You can get extra or replacement adapters with AC cord and plug at the Apple Online Store, an Apple Reseller, or an Apple Store.

A replacement adapter might not be the same size, color, shape, or wattage as the original adapter that came with your computer. But it should power and charge your Mac like the adapter that originally came with your computer.

If you need help using your MagSafe adapter, see Apple Portables: Troubleshooting power adapters.

If you're looking for a PowerPC-based power adapter, see PowerPC-based Apple Portables: Identifying the right power adapter and power cord.

Information about these and other types of Mac ports is available in the specifications for your Mac: choose Apple menu  > About This Mac, click Support, then click Specifications. Or check your Mac user guide.

Thunderbolt/USB 4

These Mac models have Thunderbolt/USB 4 ports:

Use these ports with displays and other devices that connect using either a Thunderbolt 3 cable or USB-C cable. You can also connect a USB-C power adapter and cable to charge your notebook computer. If you have a device that doesn't connect to this port, you may be able to use an adapter to connect it.

Thunderbolt 3

These Mac models have Thunderbolt 3 ports:

  • iMac (Retina 5K, 27-inch, 2020)
  • iMac (Retina 5K, 27-inch, 2019)
  • iMac (Retina 4K, 21.5-inch, 2019)
  • iMac (Retina 5K, 27-inch, 2017)
  • iMac (Retina 4K, 21.5-inch, 2017)
  • iMac (21.5-inch, 2017)
  • iMac Pro
  • Mac Pro (2019)
  • Mac Pro (Rack, 2019)
  • Mac mini (2018)
  • MacBook Air (Retina, 13-inch, 2020)
  • MacBook Air (Retina, 13-inch, 2019)
  • MacBook Air (Retina, 13-inch, 2018)
  • MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports)
  • MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports)
  • MacBook Pro (16-inch, 2019)
  • MacBook Pro (13-inch, 2019, Two Thunderbolt 3 ports)
  • MacBook Pro (15-inch, 2019)
  • MacBook Pro (13-inch, 2019, Four Thunderbolt 3 ports)
  • MacBook Pro (15-inch, 2018)
  • MacBook Pro (13-inch, 2018, Four Thunderbolt 3 ports)
  • MacBook Pro (15-inch, 2017)
  • MacBook Pro (13-inch, 2017, Four Thunderbolt 3 ports)
  • MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)
  • MacBook Pro (15-inch, 2016)
  • MacBook Pro (13-inch, 2016, Four Thunderbolt 3 ports)
  • MacBook Pro (13-inch, 2016, Two Thunderbolt 3 ports)

My Book For Mac Power Supply

Use these ports with displays and other devices that connect using either a Thunderbolt 3 cable or USB-C cable. You can also connect a USB-C power adapter and cable to charge your notebook computer. If you have a device that doesn't connect to this port, you may be able to use an adapter to connect it.


If your Mac notebook or desktop computer has more than one port like this, each port supports Thunderbolt 3 and USB-C.

USB-C

MacBook models introduced in 2015 or later have a single USB-C port. This port doesn't support Thunderbolt devices.

Use this port with displays and other devices that connect using a USB-C cable. You can also connect a USB-C power adapter and cable to charge your notebook computer. If you have a device that doesn't connect to this port, you may be able to use an adapter to connect it.


If your Mac only has one port like this, it's a MacBook that supports USB-C but not Thunderbolt.

Thunderbolt

These Mac models have Thunderbolt or Thunderbolt 2 ports:

  • MacBook Pro introduced in 2011 until 2015
  • MacBook Air introduced in 2011 until 2017
  • Mac mini introduced in 2011 until 2014
  • iMac introduced in 2011 until 2015
  • Mac Pro introduced in 2013
Power

Use these ports with displays and other devices that connect using a Thunderbolt cable.

Thunderbolt and Thunderbolt 2 are not the same as Mini DisplayPort . They are the same shape, but have different symbols on the cable and port. However, this port does support Mini DisplayPort for video output, so you can use a Mini DisplayPort cable to connect a Mini DisplayPort display.

Mini DisplayPort

These Mac models have Mini DisplayPort:

  • MacBook Pro introduced in late 2008 until 2010
  • MacBook Air introduced in late 2008 until 2010
  • Mac mini introduced in 2009 and 2010
  • iMac introduced in 2009 and 2010
  • Mac Pro introduced in 2009 until 2012

Use this port with displays that connect using a Mini DisplayPort cable.

Mini DisplayPort is not the same as Thunderbolt or Thunderbolt 2 . They are the same shape, but have different symbols on the cable and port.

USB-A

Use these ports with devices that connect using a USB-A cable. USB ports are sometimes known by the USB specification of the port, such as USB 2 or USB 3.


Left to right: power, two Thunderbolt, USB-A and Audio-Out.

HDMI

Use HDMI with displays and TVs that connect using an HDMI cable.

Ethernet

Use Ethernet with networks and devices that connect using an Ethernet (RJ45) cable.

FireWire

Power

Use FireWire with devices that connect using a FireWire 400 or FireWire 800 cable.

SD card

Use the SD card slot with SD, SDHC, SDXC, MMC and UHS-II media cards, such as those used by digital cameras.

Audio

Use Audio-Out – or – with headphones, speakers and other audio-output devices that connect using an audio cable that has a 3.5mm (1/8 inch) audio jack.

Use Audio-In with a microphone or other audio-input device that connects using an audio cable that has a 3.5mm (1/8 inch) audio jack.

Power

Use the power port , if available, to connect your computer to AC power using a MagSafe cable or adapter. This port isn't available on newer Mac notebook computers, which use Thunderbolt 3 or USB-C for power and charging. Find out more about power adapters and cables for Mac notebook computers.

Learn more