Transfer files between a Mac with Apple silicon and another Mac
You can connect a Mac with Apple silicon to another Mac so that the Mac with Apple silicon appears as an external hard disk. You can then transfer files between the Mac computers.
Connect the two computers using a USB, USB-C, or Thunderbolt cable.
On the Mac with Apple silicon, choose Apple menu > Shut Down.
Press and hold the power button until you see “Loading startup options.”
Click Options, then click Continue.
If requested, enter the password for an administrator account.
Your Mac opens in Recovery mode.
Choose Utilities > Share Disk.
Select the disk that you want to share, then click Start Sharing.
On the other Mac, open a Finder window, click Network in the sidebar under Locations.
In the Network window, double-click the Mac that has the shared disk, click Connect As, select Guest in the Connect As window, then click Connect.
Transfer the files.
When you’re done transferring files, eject the disk on the other Mac.