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