Delivering an industry-leading, 64-bit framework for high-performance scalable computing, the IBM System x3950 M2 is built on the power of latest eX4 Architecture, the fourth generation of the IBM Enterprise X-Architecture technology. eX4 Architecture drives the x3950 M2 to deliver the performance, availability, expandability, and manageability required for the next generation of industry-standard servers.The x3950 M2 combines unmatched four-socket 64-bit performance, the Intel Xeon quad-core processor, more flexible XpandOnDemand modular scalability, and enhanced mission-critical availability to deliver an optimized (enterprise or on-demand) solution for scale-up virtualization, database, mid-tier application services or terminal services.With its extensive chipset development experience, industry-leading performance, and availability breakthroughs, IBM is uniquely positioned to propose a robust and powerful server, offering innovation that delivers real business and IT results.The server features 4-socket license of Windows Server 2003 R2, Datacenter Edition.