As of this report, SQL Server 2008 R2 has reached its . Mainstream Support End: July 2014. Extended Support End: July 9, 2019.
This specific DVD (521546) is the original Microsoft MSDN (Microsoft Developer Network) disc image for . The "EN" denotes English language. The key feature of this release is its multi-platform support : it includes installers for 32-bit (x86), 64-bit (x64), and the now-defunct Intel Itanium (IA64) architecture. En Sql Server 2008 R2 Standard X86 X64 Ia64 Dvd 521546