NCache is a high performance in-memory object caching solution for mission critical .NET applications with real-time data access needs. NCache not only lets you cache read-only data but also complex transactional data with relationships. NCache is a clustered object cache for .NET that also includes a Clustered ASP.NET Session State. This Clustered Session State is much faster than the standard ASP.NET Session State and handles server-farm configuration much better. It has a better performance than ASP.NET Session State, is more scalable, and more reliable.It runs faster because unlike ASP.NET Session State that either keeps its data in SQL Server or on one computer, NCache Clustered Session State keeps it replicated on all servers in the farm. And, this also makes it more scalable because the load is not put on a single computer. And, finally, it is more reliable because there is no single-point-of-failure due to replicated clustering.