https://www.aliexpress.com/item/4001049840288.html?spm=a2g0s.9042311.0.0.3da24c4dUkYBog
STM32F401 Development Board V3.0 STM32F401CCU6 STM32F411CEU6 STM32F4 Learning Board 84Mhz 96KB RAM 512KB/100Mhz 128KB RAM 512KB |Integrated Circuits| – AliExpress
Jovan Stosic