How can I sell my copy of Cubase with eLicenser?

Hi I have been using a different DAW for some years now and would like to sell my copy of Cubase along with the USB eLicenser.

Can someone please explain how I do this as I find the info on Steinberg’s web site difficult.
Do I need to de register all the software on the eLicenser first ?

Help appreciated, I cant believe it is so difficult.

Don’t do it.

Go deeper.