Access Gateway VPX is a virtual appliance for Citrix XenServer that provides secure access to virtual desktops, applications and data while allowing users to work from anywhere. It offers the same capabilities as an Access Gateway physical appliance (Model 2010) while giving greater flexibility and more deployment options to IT administrators. Access Gateway VPX is the best choice for organizations who need to rapidly provision secure access, reduce infrastructure requirements, and minimize power consumption.

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Citrix Access Gateway VPX Reference Architecture can be found here