Unless you use the non-smart card mobility (NSCM) feature, smart cards must be used to hotdesk from one client to another. For Sun Ray Clients, only the internal smart card reader can be used for hotdesking. External smart card readers for hotdesking are not supported.

For Oracle Virtual Desktop Clients, any connected smart card reader can be used for hotdesking. To configure a smart card reader for hotdesking, you need to use the Smart Card setting to enable smart card access and to choose the smart card reader if there is more than one connected. Once configured, the smart card reader uses the scbus channel and is handled just like the internal smart card reader on a Sun Ray Client. See the Oracle Virtual Desktop Client User's Guide for details.