The X-NUCLEO-SAFEA1 expansion board based on the STSAFE-A110 secure element can be used with any STM32 Nucleo development board. It is supplied with free X-CUBE-SAFEA1 and X-CUBE-SBSFU software packages.
The board includes an HE10 extension connector to mount additional STSAFE devices, and an Arduino UNO R3 connector.