Basically, the answer is “yes”:
Any license, that can be stored in a Soft-eLicneser, can be transferred to a USB-eLicenser.
But all licenses that are stored in a USB-eLicenser can only stay on USB-eLicensers, i.e. they cannot be transferred back to a Soft-eLicenser.
So, once you moved your license to a USB-eLicenser, this process is not reversible.
Most users do not need to transfer their license back from a USB-eLicenser to a Soft-eLicenser, but you should know about this restriction in advance.
Best,
Dirk