How to check Apple adapter serial number?
Apple adapter serial number check
[Edited by Moderator]
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Sorry, but this is a user to user forum, we can't access any data from Apple.
You will have to contact the official Apple Support about that.
Contact Apple for support and service - Apple Support
Did you buy your adapter from an Authorized Apple Reseller or Apple Store?
Have a look at this article to inspect your adapter visually:
About Apple USB power adapters - Apple Support