Is this a clone?
That's an original, yes.
The member 1969z just above your post, has boughten from that same ebay guy.
For some food for thought...
Definition of a clone is another receiver manufacture use same software as the original has used. It does not mean a receiver of the same name. Many will use names that are popular and similar.
I don't think you would be needing to worry about clones. Maybe you might find one that is similar in appearance but different name, or similar name but different in appearance. The MAG line is not even an original. Some time in the past over in Russia, these receivers became popular to a few different companies.