CloudBridge (formerly, Branch Repeater) is the Citrix solution to optimize WAN connections. It's a family of WAN accelerators, which are explained as follows:
Repeater appliances that are designed for use in data centers
CloudBridge appliances that are designed for use in branch offices
Software plugins that are run on Windows laptops and workstations
Some CloudBridge appliances are shipped with a licensed version of Microsoft Windows Server 2012 R2 Standard Edition that runs on a virtual machine within the appliance.
A virtual appliance, CloudBridge VPX, is also available, and it can be hosted on Citrix XenServer, VMware ESX or ESXi, Microsoft Hyper-V, and Amazon Web Services (AWS) virtualization platforms.