SQL Server 2008 R2 Standard Edition is a relational database management system developed by Microsoft. It's a 64-bit version, which means it can run on x64 and IA64 architectures.
If you need a ISO for archival, testing, or compliance:
If you have verified the source (e.g., it is your own company’s slipstreamed image), follow this checklist:
This is the final major service pack and is mandatory for stability.