External drives · Choosing a drive
Can I use a wireless external drive with my Mac?
Short answer: Yes, but it works as network storage over Wi-Fi — slower and less dependable than a cable. Storage Studio can't use a network share as the fast drive, though you can still copy files to one with Data Transfers.
Yes, as network storage. A wireless drive shares its files over Wi-Fi, so your Mac sees it as a network share rather than a directly attached disk. That's fine for occasional copies and media, but slower and less dependable than a cable.
Storage Studio won't use a network share as the fast drive, because moved apps and folders need a drive that is always attached — see using a NAS or network drive. You can still copy to it with Data Transfers.