The X-NUCLEO-SAFEA1 expansion board is based on the STSAFE-A110 secure element. It can be used with any STM32 Nucleo development board. The on-board STSAFE-A110 is customized with a standard profile for evaluation and is compatible with the Arduino UNO R3 connector. The X-NUCLEO-SAFEA1 expansion board is used with free X-CUBE-SAFEA1 or X-CUBE-SBSFU software packages containing sample code to demonstrate how to implement security applications. https://elecena.pl/product/24608514/x-nucleo-safea1b-secure-element-expansion-board-based-on-stsafe-a110 2023-12-09 https://elecena.pl/product/24608514/x-nucleo-safea1b-secure-element-expansion-board-based-on-stsafe-a110 2025-06-30 https://elecena.pl/product/24608514/x-nucleo-safea1b-secure-element-expansion-board-based-on-stsafe-a110 2026-03-05 https://elecena.pl/product/24608514/x-nucleo-safea1b-secure-element-expansion-board-based-on-stsafe-a110 2026-04-02