
Time Machine is a built-in utility from Apple that backs up data on Mac computers, allowing users to recover previous versions of files or data that have been changed or deleted. While connecting an external disk to a Mac for backup via Time Machine is possible, using an Airport Extreme Base Station offers a more convenient alternative, especially for MacBook users. This method involves connecting an external drive to the base station, which can then be used for wireless backups. While Apple previously prohibited using Airport Disks for Time Machine backups, the release of the 802.11ac AirPort Extreme Base Station in June 2013 changed this, allowing Time Machine to back up to external drives connected to the base station. However, it's important to note that this feature is only supported by the 802.11ac model, and older Airport Extreme Base Station models may not be compatible.
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What You'll Learn
- Time Machine backs up your Mac to an external drive connected to an Airport Extreme 802.11ac base station
- Time Machine cannot back up data to external drives connected to other Airport Extreme base station models
- Time Machine can back up to the built-in hard disk of an Airport Time Capsule
- Time Machine can back up to an external storage device connected to a USB, Thunderbolt, or FireWire port on your Mac
- Time Machine can be used with an external hard drive, but it is not officially supported by Apple

Time Machine backs up your Mac to an external drive connected to an Airport Extreme 802.11ac base station
Time Machine is a built-in utility from Apple that backs up data on your Mac, allowing you to retrieve earlier versions of files or data that have been changed or deleted.
Time Machine can back up your Mac to any storage device that is compatible with Time Machine. This includes external storage devices connected to your Mac's USB, Thunderbolt, or FireWire port. Time Machine can also back up to the built-in disk of another Mac on your network.
In the case of using an Airport Extreme Base Station, Time Machine can back up to an external storage device connected to the USB port of the base station. Specifically, this feature is only available on the 802.11ac model of the Airport Extreme Base Station, as stated by Apple in their "Mac Basics: Time Machine backs up your Mac" document:
> Time Machine can only back up to an external drive connected to an AirPort Extreme 802.11ac base station. Time Machine cannot back up data to external drives connected to other AirPort Extreme base station models.
This capability was introduced in June 2013 with the release of the 802.11ac Airport Extreme Base Station, contradicting the previous prohibition against using an Airport Disk with Time Machine.
To set up Time Machine with an Airport Extreme 802.11ac Base Station, connect your external storage device to the USB port on the base station. Then, open the AirPort Utility application on your Mac and select your base station. Click "Edit" to view its settings and navigate to the "Disks" tab. Select your backup disk from the list of partitions and enable file sharing. If multiple users will back up to this disk, you can use the "Secure Shared Disks" option to ensure they can only view their backups.
It is worth noting that some users have reported issues with using Time Machine through an Airport Extreme Base Station, particularly with newer macOS versions like Ventura. These issues may include the base station not recognizing certain disk formats or difficulties in setting up the backup destination.
Additionally, when using Time Machine with an external drive connected to the base station, the data transfer speeds may be slower compared to direct connections to a Mac due to the limitations of the USB 2.0 interface used by the base station.
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Time Machine cannot back up data to external drives connected to other Airport Extreme base station models
Time Machine is a built-in utility from Apple that backs up the data on your Mac computer. Time Machine can back up to an external USB drive connected to an AirPort Extreme Base Station (802.11ac model) or AirPort Time Capsule.
Apple notes that "Time Machine can only back up to an external drive connected to an AirPort Extreme 802.11ac base station. Time Machine cannot back up data to external drives connected to other AirPort Extreme base station models." This statement contradicts a 5-year-old prohibition against pointing Time Machine at an AirPort Disk.
Users have reported issues with getting Time Machine to work with older AirPort Extreme Base Stations. One user reported that their Ventura computer could see the hard drive in the finder, mount it, and write to it, but when they tried to add a backup drive, it said "no available time machine destinations."
Another user reported that they were able to get Time Machine to work with their old Airport Extreme by using the command line.
It is important to note that while some users have reported success in using Time Machine with older AirPort Extreme Base Stations, this setup is not officially supported by Apple.
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Time Machine can back up to the built-in hard disk of an Airport Time Capsule
Time Machine is a built-in utility from Apple that backs up the data on your Mac computer. Time Machine can back up to the built-in hard disk of an Airport Time Capsule, which is a network device sold by Apple that works with Time Machine.
To use Time Machine with an Airport Time Capsule, simply select the Time Capsule as the backup disk when setting up Time Machine on your Mac. Time Machine can also back up to an external storage device connected to the USB port of an AirPort Extreme Base Station (802.11ac model) or AirPort Time Capsule on your network.
If the storage device is not using Mac OS Extended (Journaled) format, connect it to your Mac and reformat it with Disk Utility. Then, connect the storage device to a USB port on your base station and turn it on. Open AirPort Utility, select your base station, and click Edit to view its settings. Click the Disks tab, select your backup disk from the list of partitions, and select “Enable file sharing”.
It is important to note that Time Machine is designed to work as a local, primary backup of your Mac, meaning the data stays physically close to the computer. Time Machine should not be your only backup method, as it relies on a single hard drive to store your data. If something happens to your Mac and your Time Machine backup drive is not working, you will not be able to recover your data.
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Time Machine can back up to an external storage device connected to a USB, Thunderbolt, or FireWire port on your Mac
To set up Time Machine on your Mac, connect an external storage device, such as a USB drive or Thunderbolt drive, to the appropriate port on your Mac. The external storage device should have at least twice the storage capacity of your Mac. For example, if your Mac has 1TB of storage, your backup disk should ideally have at least 2TB of storage.
After connecting the external storage device, open the Time Machine system preference pane. Click the Options button and select any drive in the exclusion list that you want Time Machine to include. Click the minus button to remove it and repeat for any additional drives, then click Save.
You can also use Time Machine to back up to an external storage device connected to the USB port of an AirPort Extreme Base Station (802.11ac model) or AirPort Time Capsule on your network. If the storage device isn't using Mac OS Extended (Journaled) format, connect it to your Mac and reformat it with Disk Utility.
Additionally, you can set up your Mac computers to save their Time Machine backups to the Airport Extreme hard drive wirelessly when connected to your home network. This allows for automatic backups without the need to manually plug in an external drive.
By following these steps, you can effectively use Time Machine to back up your Mac to an external storage device connected via USB, Thunderbolt, or FireWire, as well as utilize AirPort Extreme Base Station or AirPort Time Capsule for wireless backup solutions.
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Time Machine can be used with an external hard drive, but it is not officially supported by Apple
Time Machine is a built-in utility from Apple that backs up data on Mac computers, allowing users to recover previous versions of files or data that have been changed or deleted. Time Machine can back up data to an external storage device connected to a Mac via USB, Thunderbolt, or FireWire.
While Time Machine can be used with an external hard drive connected to an AirPort Extreme Base Station, it is important to note that this functionality is not officially supported by Apple. Specifically, only the 802.11ac model of the AirPort Extreme Base Station released in June 2013 officially supports using Time Machine with an external hard drive.
Prior to the release of this model, Apple's documentation stated that Time Machine could only back up to the built-in hard disk of an AirPort Time Capsule. However, some users have reported successfully using older AirPort Extreme Base Stations with a USB hard drive for Time Machine backups. It is worth noting that Apple has not ruled out the use of Time Machine with other AirPort Extreme models, and there may be workarounds or updates that enable this functionality.
To use an external hard drive with an AirPort Extreme Base Station for Time Machine backups, users can connect the drive to the USB port on the base station and follow the setup instructions provided by Apple. However, it is recommended to refer to Apple's official documentation and support articles for the most up-to-date and accurate information.
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Frequently asked questions
Yes, you can use an Airport Base Station as Time Machine, but it must be the 802.11ac model.
You can still use an older model Airport Base Station as Time Machine, but it is not officially supported by Apple.
First, connect your external drive to your Mac, then use Disk Utility to erase it. Next, connect the drive to a USB port on your AirPort base station and turn it on. Open AirPort Utility, select your base station and click Edit to view its settings. Click the Disks tab in the settings window, then select your backup disk from the list of partitions and click "Enable file sharing".
Yes, you can use an Airport Time Capsule as Time Machine. You will need to disable the wifi part of the Airport Time Capsule and put it in "Bridge" mode.






















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