The SQL Server 2012 Enterprise Edition product key is:
If you've already purchased SQL Server 2012 Enterprise Edition but can't find your product key, there are a few places you can look:
Are you planning to an existing Standard instance to Enterprise, or are you setting up a new server from scratch? SQL Server 2012 Licensing Quick Reference Guide
The SQL Server 2012 Enterprise Edition product key is:
If you've already purchased SQL Server 2012 Enterprise Edition but can't find your product key, there are a few places you can look: i--- Sql Server 2012 Enterprise Edition Product Key
Are you planning to an existing Standard instance to Enterprise, or are you setting up a new server from scratch? SQL Server 2012 Licensing Quick Reference Guide The SQL Server 2012 Enterprise Edition product key