USB E licenser cUBASE 10 PRO

Hey Folks!
Mate of mine has offered to sell me his USB E licenser for cubase 10 pro, If I buy it will I still have to pay to download the actual software or do I just plug in the USB, download 10 pro and it’ll be registered?

Also, I already have an elicenser for my cubase 5 and 10 LE, would i need to remove that usb before using the pro 10 one?

Cheers for any help.

MM

https://helpcenter.steinberg.de/hc/en-us/articles/115001662364-Transferring-licenses-

that is how you do it, but if you are buying his PRO version I don’t see the point in transferring your old LE licenses

OK thanks.
So I’ll just remove the old USB elicenser and just use the 10 pro one?

yes… PRO should handle all old LE projects

Cheers.