A Horizon Unified Access Gateway can be deployed in two different configurations, which support a maximum of  2,000 or 10,000 simultaneous Horizon client connections, depending on the deployment option chosen. Despite these limits, it is important to remember that multiple Unified Access Gateway appliances should be deployed to ensure both capacity and availability requirements are met.

Each Horizon Unified Access Gateway is a standalone instance; therefore, there is no specific guidance with regard to how many can be deployed. However, unlike a Horizon Security Server, a Horizon Unified Access Gateway can be used with multiple Connection Servers at once, although those Connection Servers must be placed behind a load balancer.