Windows Server 2008 R2 Enterprise is an advanced server platform that provides more cost-effective and reliable support for mission-critical workloads. It offers innovative features for virtualization, power savings, and manageability and helps make it easier for mobile workers to access company resources.
Features
Support for 2 terabytes of RAM
Scalable up to 8 x64/64-bit processors
Host + 4 virtual image use rights
Support for a 16-node failover cluster
Hot Add/Replace Memory and Processors with supporting hardware
Fault-tolerant memory synchronization
Cross-file replication (DFS-R)
Virtually unlimited Network Access Service connections (RRAS and IAS)
Virtually unlimited Network Policy Server connections
Virtually unlimited Remote Services Gateway connections
AD Rights Management Services
BranchCache Content Server
BranchCache Hosted Server
DirectAccess
Hyper-V
Network Access Protection (NAP)
Remote Desktop Services
Internet Information Services 7.5
Server Core Support
Server Manager
Windows Powershell 2.0