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The choice of cloud provider and region affects network latency for clients accessing your database deployment and the cost of running the database deployment. For clusters, this choice also affects the configuration options for the available cluster tiers. The region refers to the physical location of your MongoDB database deployment.
Atlas supports deploying serverless instances on all cloud providers but only to a subset of each cloud provider's regions. For a list of regions that support serverless instances, see:
Atlas supports deploying
M0 free clusters and
M2/M5 shared clusters on all cloud providers but only to a
subset of each cloud provider's regions. For a list of regions that
M2/M5 clusters, see:
In the Create New Cluster page:
Regions marked as ★ are Recommended regions that provide higher availability compared to other regions.
Regions marked as under Shared tier are not available for shared tier clusters and therefore appear grayed-out. These regions are available for dedicated clusters only.
For more information, see:
For more information on multi-region configurations for increased availability, see Configure High Availability and Workload Isolation.