N
Velvet Digest

Does Target Disk Mode work with USB?

Author

Ethan Hayes

Updated on May 02, 2026

Target Disk Mode over USB only works when connected via USB 3, so it can only be used with 2012 and later Macs (despite Apple's support article erroneously suggesting older models, by stating “any Mac”).

.

Then, can I use USB for Target Disk Mode?

Target Disk Mode over USB only works when connected via USB 3, so it can only be used with 2012 and later Macs (despite Apple's support article erroneously suggesting older models, by stating “any Mac”). Nor can Target Disk Mode be used with Apple's USB-C charge cable, which is a USB 2 cable when used for data.

Secondly, what does Target Disk Mode do? Target Disk Mode (sometimes referred to as TDM or Target Mode) is a boot mode unique to Macintosh computers. Target Disk Mode is useful for accessing the contents of a Mac which cannot be booted from its own operating system.

Hereof, what cable do I need for Target Disk Mode?

Before Entering Target Disk Mode A Firewire or Thunderbolt Cable: You'll need either a Firewire cable or a Thunderbolt cable for this. You can't do this via a USB cable. If one Mac has a Thunderbolt port and the other Mac has a Firewire port, you'll need a Thunderbolt-to-Firewire adapter cable.

How do I transfer files from Target Disk Mode?

Transfer files between two Mac computers using target disk mode

  1. Connect the two computers with a FireWire or Thunderbolt cable.
  2. On the Mac you want to use as the disk in target disk mode, do one of the following:
  3. Transfer files by dragging them to and from the disk.
  4. Eject the disk by dragging its icon to the Trash.
Related Question Answers

How do I exit target disk mode?

To exit Target Disk Mode, press and hold the power button on the Mac you used as a disk. Then disconnect the cable and return to normal operation.

Does Target Disk Mode work with Ethernet?

No. You can't use Ethernet. The specs for target disk mode are very specific about firewire. You might be able to get your data off the drive via Firewire Target Disk mode, after buying the FireWire cable you need.

Can I connect two Macs with USB cable?

You can NOT connect two Macs with a USB cable. However, you can use a USB to ethernet adapter on both Macs. There is another method of directly connecting Macs using Firewire or Thunderbolt — it's called Target Disk Mode (TDM).

How do I use FireWire Target Disk Mode?

If you're not familiar with FireWire target disk mode it transforms a Mac equipped with a FireWire port (either 400 or 800) into an external hard drive. Simply hold down the T key when you boot up and the Mac in question, as long as it supports this mode, will boot into FireWire target disk mode.

What is another name for IEEE 1394?

FireWire is also known by the term IEEE 1394 and by the brand name Sony i. FireWire was first developed by Apple and it was standardized in 1995; it was given the name IEEE 1394 High Performance Serial Bus. It works much like a Universal Serial Bus, commonly called a USB.

How do I start Migration Assistant?

Transferring Data With macOS Migration Assistant Connect the target and host, boot the target into Target Disk Mode as normal, then on the host launch Migration Assistant under Utilities. Select From another Mac, PC, Time Machine backup, or other disk then select From a Mac, Time Machine backup, or startup disk.

Can you connect FireWire to USB C?

No, it is not possible to connect a FireWire interface to your computer's USB port via a FireWire to USB adapter since this connection is not sufficient to run a FireWire audio interface.

Can I connect two Macs with Ethernet cable?

You can use an Ethernet cable to connect two Mac computers and share files or play network games. You don't need to use an Ethernet crossover cable. If your computer doesn't have an Ethernet port, try using a USB-to-Ethernet adapter. On each computer, choose Apple menu > System Preferences and click Sharing.

How do I use Target Display Mode?

Entering Target Display Mode
  1. Turn on your iMac, and make sure the other Mac is logged in.
  2. Connect the Mini DisplayPort or Thunderbolt cable between the two computers.
  3. Press Command + F2 on the keyboard of the iMac that you want to use as a display.

How do I boot my macbook from an external drive?

This can be used to select any bootable drive connected to the Mac:
  1. Connect the external drive or device to the Mac.
  2. Reboot the Mac and after the startup chime hold down the OPTION key during boot until you see the boot selection menu.
  3. Click the external volume to boot from it.

What are FireWire devices?

Along with USB, Firewire (also called IEEE 1394) is another popular connector for adding peripherals to your computer. Firewire is most often used to connect digital camcorders, external hard drives, and other devices that can benefit from the high transfer rates (up to 480 Mbps) supported by the Firewire connection.

Can I use my Mac while Migration Assistant is running?

Time Machine: You can use your Time Machine backup as the source for copying data with the Migration Assistant. External Drive: We already mentioned that the Migration Assistant can use a Time Machine backup drive when it's connected to the new Mac, but it can also use any startup drive that's connected to the new Mac.

What is Target Display mode on iMac?

Target Display Mode not supported by new iMacs Target Display Mode is a useful feature for iMac owners who also own other Macs. It allows you to use the iMac's display as an external screen for the other Mac.

How long does the Migration Assistant take?

Because they have a reasonably good estimate of how long it will take to get there. They just look at the GPS in the car and it says something like 2 hours and 23 minutes left. These computer-GPS estimates are fairly accurate - usually within 10 minutes are so.

How do I connect two Macs?

Use Ethernet to connect two Mac computers
  1. Connect a standard Ethernet cable from the Ethernet port on one computer to the Ethernet port on the other.
  2. On each Mac, choose Apple menu > System Preferences, click Sharing, then note the computer name for each computer.
  3. In the Finder on one of the Mac computers, choose Go > Connect to Server, then click Browse.

Does FireWire to Thunderbolt work?

Apple's Thunderbolt FireWire adapter is a one-way connector. While Apple's new adapter can be attached to a computer by its FireWire connection, it will not provide Thunderbolt over FireWire.

Is Thunderbolt 3 the same as USB C?

The simplest explanation is that USB-C refers to the shape of the port and Thunderbolt 3 refers to the connectivity standard. Thunderbolt 3 combines Thunderbolt, USB, DisplayPort and power via a single USB-C connector.

How do I connect two Macs to transfer files?

Open System Preferences from the ? Apple menu, and click on “Sharing” panel. Check to enable “File Sharing” on all Macs you want to share files between. From the Mac OS X Finder, hit Command+Shift+K and then click “Browse” to find and connect to the desired Mac.

What is a Thunderbolt cable?

Thunderbolt is an interconnect technology developed by Intel in cooperation with Apple. Thunderbolt combines PCI Express and DisplayPort into a single connection, allowing for a combination of up to six peripherals, like storage devices and monitors, to be daisy-chained together.