SMARTCARD Xplained Pro is designed to be connected to the Xplained Pro header marked EXT3. It is compatible with EXT2 as well. Refer to the pin-out of your Xplained Pro evaluation kit to find out which Xplained Pro EXT headers that can be used.
Once the Xplained Pro MCU board is powered, the green power LED will be lit and Atmel Studio will auto-detect which Xplained Pro MCU and extension board(s) are connected. Atmel Studio will present relevant information like datasheets and kit documentation. The kit landing page in Atmel Studio also have the option to launch Atmel Software Framework (ASF) example applications for the kit. The target device is programmed and debugged by the on-board Embedded Debugger. No external programmer or debugger tool is needed.