STM32F103C8 - Mainstream Performance line, Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 72 MHz CPU, motor control, USB and CAN - STMicroelectronics
Amazon.com: [initeq] STM32 ARM STM32F103C8T6 Blue Pill Minimum System Development Board with ST-Link V2 USB Programmer (2-Pack + ST-Link V2) : Electronics
STM32 Development Board With 480MHz MCU 64MB RAM 8MB Flash